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CHAPTER 4 MONEY-TIME RELATIONSHIPS AND EQUIVALENCE.

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1 CHAPTER 4 MONEY-TIME RELATIONSHIPS AND EQUIVALENCE

2 MONEY Medium of Exchange -- Means of payment for goods or services; What sellers accept and buyers pay ; Store of Value -- A way to transport buying power from one time period to another; Unit of Account -- A precise measurement of value or worth; Allows for tabulating debits and credits; Medium of Exchange -- Means of payment for goods or services; What sellers accept and buyers pay ; Store of Value -- A way to transport buying power from one time period to another; Unit of Account -- A precise measurement of value or worth; Allows for tabulating debits and credits;

3 CAPITAL Wealth in the form of money or property that can be used to produce more wealth.

4 KINDS OF CAPITAL Equity capital is that owned by individuals who have invested their money or property in a business project or venture in the hope of receiving a profit. Debt capital, often called borrowed capital, is obtained from lenders (e.g., through the sale of bonds) for investment. Equity capital is that owned by individuals who have invested their money or property in a business project or venture in the hope of receiving a profit. Debt capital, often called borrowed capital, is obtained from lenders (e.g., through the sale of bonds) for investment.

5

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7 Exchange money for shares of stock as proof of partial ownership

8 INTEREST The fee that a borrower pays to a lender for the use of his or her money. INTEREST RATE The percentage of money being borrowed that is paid to the lender on some time basis. The fee that a borrower pays to a lender for the use of his or her money. INTEREST RATE The percentage of money being borrowed that is paid to the lender on some time basis.

9 HOW INTEREST RATE IS DETERMINED Interest Rate Quantity of Money

10 HOW INTEREST RATE IS DETERMINED Interest Rate Quantity of Money Money Demand

11 HOW INTEREST RATE IS DETERMINED Interest Rate Quantity of Money Money Demand Money Supply MS 1

12 HOW INTEREST RATE IS DETERMINED Interest Rate Quantity of Money ieie Money Demand Money Supply MS 1

13 HOW INTEREST RATE IS DETERMINED Interest Rate Quantity of Money ieie Money Demand Money Supply MS 1 MS 2 i2i2

14 HOW INTEREST RATE IS DETERMINED Interest Rate Quantity of Money ieie Money Demand Money Supply MS 1 MS 2 i2i2 MS 3 i3i3

15 SIMPLE INTEREST The total interest earned or charged is linearly proportional to the initial amount of the loan (principal), the interest rate and the number of interest periods for which the principal is committed. When applied, total interest “I” may be found by I = ( P ) ( N ) ( i ), where –P = principal amount lent or borrowed –N = number of interest periods ( e.g., years ) –i = interest rate per interest period The total interest earned or charged is linearly proportional to the initial amount of the loan (principal), the interest rate and the number of interest periods for which the principal is committed. When applied, total interest “I” may be found by I = ( P ) ( N ) ( i ), where –P = principal amount lent or borrowed –N = number of interest periods ( e.g., years ) –i = interest rate per interest period

16 COMPOUND INTEREST Whenever the interest charge for any interest period is based on the remaining principal amount plus any accumulated interest charges up to the beginning of that period. Period Amount Owed Interest Amount Amount Owed Beginning of for Period at end of period ( @ 10% ) period 1$1,000$100$1,100 2$1,100$110$1,210 3$1,210$121$1,331 Whenever the interest charge for any interest period is based on the remaining principal amount plus any accumulated interest charges up to the beginning of that period. Period Amount Owed Interest Amount Amount Owed Beginning of for Period at end of period ( @ 10% ) period 1$1,000$100$1,100 2$1,100$110$1,210 3$1,210$121$1,331

17 ECONOMIC EQUIVALENCE Established when we are indifferent between a future payment, or a series of future payments, and a present sum of money. Considers the comparison of alternative options, or proposals, by reducing them to an equivalent basis, depending on: –interest rate; –amounts of money involved; –timing of the affected monetary receipts and/or expenditures; –manner in which the interest, or profit on invested capital is paid and the initial capital is recovered. Established when we are indifferent between a future payment, or a series of future payments, and a present sum of money. Considers the comparison of alternative options, or proposals, by reducing them to an equivalent basis, depending on: –interest rate; –amounts of money involved; –timing of the affected monetary receipts and/or expenditures; –manner in which the interest, or profit on invested capital is paid and the initial capital is recovered.

18 CASH FLOW DIAGRAMS / TABLE NOTATION i = effective interest rate per interest period N = number of compounding periods (e.g., years) P = present sum of money; the equivalent value of one or more cash flows at the present time reference point F = future sum of money; the equivalent value of one or more cash flows at a future time reference point A = end-of-period cash flows (or equivalent end-of- period values ) in a uniform series continuing for a specified number of periods, starting at the end of the first period and continuing through the last period G = uniform gradient amounts -- used if cash flows increase by a constant amount in each period i = effective interest rate per interest period N = number of compounding periods (e.g., years) P = present sum of money; the equivalent value of one or more cash flows at the present time reference point F = future sum of money; the equivalent value of one or more cash flows at a future time reference point A = end-of-period cash flows (or equivalent end-of- period values ) in a uniform series continuing for a specified number of periods, starting at the end of the first period and continuing through the last period G = uniform gradient amounts -- used if cash flows increase by a constant amount in each period

19 CASH FLOW DIAGRAM NOTATION 12345 = N 1 1 Time scale with progression of time moving from left to right; the numbers represent time periods (e.g., years, months, quarters, etc...) and may be presented within a time interval or at the end of a time interval.

20 CASH FLOW DIAGRAM NOTATION 12345 = N 1 1 Time scale with progression of time moving from left to right; the numbers represent time periods (e.g., years, months, quarters, etc...) and may be presented within a time interval or at the end of a time interval. P =$8,000 2 2 Present expense (cash outflow) of $8,000 for lender.

21 CASH FLOW DIAGRAM NOTATION 12345 = N 1 1 Time scale with progression of time moving from left to right; the numbers represent time periods (e.g., years, months, quarters, etc...) and may be presented within a time interval or at the end of a time interval. P =$8,000 2 2 Present expense (cash outflow) of $8,000 for lender. A = $2,524 3 3 Annual income (cash inflow) of $2,524 for lender.

22 CASH FLOW DIAGRAM NOTATION 12345 = N 1 1 Time scale with progression of time moving from left to right; the numbers represent time periods (e.g., years, months, quarters, etc...) and may be presented within a time interval or at the end of a time interval. P =$8,000 2 2 Present expense (cash outflow) of $8,000 for lender. A = $2,524 3 3 Annual income (cash inflow) of $2,524 for lender. i = 10% per year 4 4 Interest rate of loan.

23 CASH FLOW DIAGRAM NOTATION 12345 = N 1 1 Time scale with progression of time moving from left to right; the numbers represent time periods (e.g., years, months, quarters, etc...) and may be presented within a time interval or at the end of a time interval. P =$8,000 2 2 Present expense (cash outflow) of $8,000 for lender. A = $2,524 3 3 Annual income (cash inflow) of $2,524 for lender. i = 10% per year 4 4 Interest rate of loan. 5 5 Dashed-arrow line indicates amount to be determined.

24 RELATING PRESENT AND FUTURE EQUIVALENT VALUES OF SINGLE CASH FLOWS Finding F when given P: Finding future value when given present value F = P ( 1+i ) N –(1+i) N single payment compound amount factor –functionally expressed as F = ( F / P, i%,N ) –predetermined values of this are presented in column 2 of Appendix C of text. Finding F when given P: Finding future value when given present value F = P ( 1+i ) N –(1+i) N single payment compound amount factor –functionally expressed as F = ( F / P, i%,N ) –predetermined values of this are presented in column 2 of Appendix C of text. P 0 N = F = ?

25 Finding P when given F: Finding present value when given future value P = F [1 / (1 + i ) ] N – (1+i) -N single payment present worth factor – functionally expressed as P = F ( P / F, i%, N ) –predetermined values of this are presented in column 3 of Appendix C of text; Finding P when given F: Finding present value when given future value P = F [1 / (1 + i ) ] N – (1+i) -N single payment present worth factor – functionally expressed as P = F ( P / F, i%, N ) –predetermined values of this are presented in column 3 of Appendix C of text; RELATING PRESENT AND FUTURE EQUIVALENT VALUES OF SINGLE CASH FLOWS P = ? 0N = F

26 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding F given A:

27 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments

28 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments ( 1 + i ) N - 1 F = A i Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments ( 1 + i ) N - 1 F = A i

29 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments ( 1 + i ) N - 1 F = A i –uniform series compound amount factor in [ ] Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments ( 1 + i ) N - 1 F = A i –uniform series compound amount factor in [ ]

30 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments ( 1 + i ) N - 1 F = A i –uniform series compound amount factor in [ ] –functionally expressed as F = A ( F / A,i%,N ) Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments ( 1 + i ) N - 1 F = A i –uniform series compound amount factor in [ ] –functionally expressed as F = A ( F / A,i%,N )

31 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments ( 1 + i ) N - 1 F = A i –uniform series compound amount factor in [ ] –functionally expressed as F = A ( F / A,i%,N ) –predetermined values are in column 4 of Appendix C of text Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments ( 1 + i ) N - 1 F = A i –uniform series compound amount factor in [ ] –functionally expressed as F = A ( F / A,i%,N ) –predetermined values are in column 4 of Appendix C of text

32 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments ( 1 + i ) N - 1 F = A i –uniform series compound amount factor in [ ] –functionally expressed as F = A ( F / A,i%,N ) –predetermined values are in column 4 of Appendix C of text Finding F given A: Finding future equivalent income (inflow) value given a series of uniform equal Payments ( 1 + i ) N - 1 F = A i –uniform series compound amount factor in [ ] –functionally expressed as F = A ( F / A,i%,N ) –predetermined values are in column 4 of Appendix C of text F = ? 1234567 8 A =

33 ( F / A,i%,N ) = (P / A,i,N ) ( F / P,i,N ) ( F / A,i%,N ) =    F / P,i,N-k ) N k = 1

34 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding P given A:

35 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding P given A: Finding present equivalent value given a series of uniform equal receipts Finding P given A: Finding present equivalent value given a series of uniform equal receipts

36 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding P given A: Finding present equivalent value given a series of uniform equal receipts ( 1 + i ) N - 1 P = A i ( 1 + i ) N Finding P given A: Finding present equivalent value given a series of uniform equal receipts ( 1 + i ) N - 1 P = A i ( 1 + i ) N

37 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding P given A: Finding present equivalent value given a series of uniform equal receipts ( 1 + i ) N - 1 P = A i ( 1 + i ) N –uniform series present worth factor in [ ] Finding P given A: Finding present equivalent value given a series of uniform equal receipts ( 1 + i ) N - 1 P = A i ( 1 + i ) N –uniform series present worth factor in [ ]

38 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding P given A: Finding present equivalent value given a series of uniform equal receipts ( 1 + i ) N - 1 P = A i ( 1 + i ) N –uniform series present worth factor in [ ] –functionally expressed as P = A ( P / A,i%,N ) Finding P given A: Finding present equivalent value given a series of uniform equal receipts ( 1 + i ) N - 1 P = A i ( 1 + i ) N –uniform series present worth factor in [ ] –functionally expressed as P = A ( P / A,i%,N )

39 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding P given A: Finding present equivalent value given a series of uniform equal receipts ( 1 + i ) N - 1 P = A i ( 1 + i ) N –uniform series present worth factor in [ ] –functionally expressed as P = A ( P / A,i%,N ) –predetermined values are in column 5 of Appendix C of text Finding P given A: Finding present equivalent value given a series of uniform equal receipts ( 1 + i ) N - 1 P = A i ( 1 + i ) N –uniform series present worth factor in [ ] –functionally expressed as P = A ( P / A,i%,N ) –predetermined values are in column 5 of Appendix C of text

40 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding P given A: Finding present equivalent value given a series of uniform equal receipts ( 1 + i ) N - 1 P = A i ( 1 + i ) N –uniform series present worth factor in [ ] –functionally expressed as P = A ( P / A,i%,N ) –predetermined values are in column 5 of Appendix C of text Finding P given A: Finding present equivalent value given a series of uniform equal receipts ( 1 + i ) N - 1 P = A i ( 1 + i ) N –uniform series present worth factor in [ ] –functionally expressed as P = A ( P / A,i%,N ) –predetermined values are in column 5 of Appendix C of text P = ? 1234567 8 A =

41 ( P / A,i%,N ) =    P / F,i,k ) N k = 1

42 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given F:

43 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given F: Finding amount A of a uniform series when given the equivalent future value Finding A given F: Finding amount A of a uniform series when given the equivalent future value

44 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given F: Finding amount A of a uniform series when given the equivalent future value i A = F ( 1 + i ) N -1 Finding A given F: Finding amount A of a uniform series when given the equivalent future value i A = F ( 1 + i ) N -1

45 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given F: Finding amount A of a uniform series when given the equivalent future value i A = F ( 1 + i ) N -1 –sinking fund factor in [ ] Finding A given F: Finding amount A of a uniform series when given the equivalent future value i A = F ( 1 + i ) N -1 –sinking fund factor in [ ]

46 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given F: Finding amount A of a uniform series when given the equivalent future value i A = F ( 1 + i ) N -1 –sinking fund factor in [ ] –functionally expressed as A = F ( A / F,i%,N ) Finding A given F: Finding amount A of a uniform series when given the equivalent future value i A = F ( 1 + i ) N -1 –sinking fund factor in [ ] –functionally expressed as A = F ( A / F,i%,N )

47 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given F: Finding amount A of a uniform series when given the equivalent future value i A = F ( 1 + i ) N -1 –sinking fund factor in [ ] –functionally expressed as A = F ( A / F,i%,N ) –predetermined values are in column 6 of Appendix C of text Finding A given F: Finding amount A of a uniform series when given the equivalent future value i A = F ( 1 + i ) N -1 –sinking fund factor in [ ] –functionally expressed as A = F ( A / F,i%,N ) –predetermined values are in column 6 of Appendix C of text

48 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given F: Finding amount A of a uniform series when given the equivalent future value i A = F ( 1 + i ) N -1 –sinking fund factor in [ ] –functionally expressed as A = F ( A / F,i%,N ) –predetermined values are in column 6 of Appendix C of text Finding A given F: Finding amount A of a uniform series when given the equivalent future value i A = F ( 1 + i ) N -1 –sinking fund factor in [ ] –functionally expressed as A = F ( A / F,i%,N ) –predetermined values are in column 6 of Appendix C of text F = 1234567 8 A =?

49 ( A / F,i%,N ) = 1 / ( F / A,i%,N ) ( A / F,i%,N ) = ( A / P,i%,N ) - i

50 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given P:

51 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given P: Finding amount A of a uniform series when given the equivalent present value Finding A given P: Finding amount A of a uniform series when given the equivalent present value

52 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given P: Finding amount A of a uniform series when given the equivalent present value i ( 1+i ) N A = P ( 1 + i ) N -1 Finding A given P: Finding amount A of a uniform series when given the equivalent present value i ( 1+i ) N A = P ( 1 + i ) N -1

53 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given P: Finding amount A of a uniform series when given the equivalent present value i ( 1+i ) N A = P ( 1 + i ) N -1 –capital recovery factor in [ ] Finding A given P: Finding amount A of a uniform series when given the equivalent present value i ( 1+i ) N A = P ( 1 + i ) N -1 –capital recovery factor in [ ]

54 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given P: Finding amount A of a uniform series when given the equivalent present value i ( 1+i ) N A = P ( 1 + i ) N -1 –capital recovery factor in [ ] –functionally expressed as A = P ( A / P,i%,N ) Finding A given P: Finding amount A of a uniform series when given the equivalent present value i ( 1+i ) N A = P ( 1 + i ) N -1 –capital recovery factor in [ ] –functionally expressed as A = P ( A / P,i%,N )

55 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given P: Finding amount A of a uniform series when given the equivalent present value i ( 1+i ) N A = P ( 1 + i ) N -1 –capital recovery factor in [ ] –functionally expressed as A = P ( A / P,i%,N ) –predetermined values are in column 7 of Appendix C of text Finding A given P: Finding amount A of a uniform series when given the equivalent present value i ( 1+i ) N A = P ( 1 + i ) N -1 –capital recovery factor in [ ] –functionally expressed as A = P ( A / P,i%,N ) –predetermined values are in column 7 of Appendix C of text

56 RELATING A UNIFORM SERIES (ORDINARY ANNUITY) TO PRESENT AND FUTURE EQUIVALENT VALUES Finding A given P: Finding amount A of a uniform series when given the equivalent present value i ( 1+i ) N A = P ( 1 + i ) N -1 –capital recovery factor in [ ] –functionally expressed as A = P ( A / P,i%,N ) –predetermined values are in column 7 of Appendix C of text Finding A given P: Finding amount A of a uniform series when given the equivalent present value i ( 1+i ) N A = P ( 1 + i ) N -1 –capital recovery factor in [ ] –functionally expressed as A = P ( A / P,i%,N ) –predetermined values are in column 7 of Appendix C of text P = 1234567 8 A =?

57 ( A / P,i%,N ) = 1 / ( P / A,i%,N )

58 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO FUTURE EQUIVALENTS Find F when given G:

59 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO FUTURE EQUIVALENTS Find F when given G: Find the future equivalent value when given the uniform gradient amount Find F when given G: Find the future equivalent value when given the uniform gradient amount

60 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO FUTURE EQUIVALENTS Find F when given G: Find the future equivalent value when given the uniform gradient amount (1+i) N-1 -1 (1+i) N-2 -1 (1+i) 1 -1 F = G + +... + Find F when given G: Find the future equivalent value when given the uniform gradient amount (1+i) N-1 -1 (1+i) N-2 -1 (1+i) 1 -1 F = G + +... + i i i

61 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO FUTURE EQUIVALENTS Find F when given G: Find the future equivalent value when given the uniform gradient amount (1+i) N-1 -1 (1+i) N-2 -1 (1+i) 1 -1 F = G + +... + Functionally represented as (G/ i) (F/A,i%,N) - (NG/ i) Find F when given G: Find the future equivalent value when given the uniform gradient amount (1+i) N-1 -1 (1+i) N-2 -1 (1+i) 1 -1 F = G + +... + Functionally represented as (G/ i) (F/A,i%,N) - (NG/ i) i i i

62 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO FUTURE EQUIVALENTS Find F when given G: Find the future equivalent value when given the uniform gradient amount (1+i) N-1 -1 (1+i) N-2 -1 (1+i) 1 -1 F = G + +... + Functionally represented as (G/ i) (F/A,i%,N) - (NG/ i) Usually more practical to deal with annual and present equivalents, rather than future equivalent values Find F when given G: Find the future equivalent value when given the uniform gradient amount (1+i) N-1 -1 (1+i) N-2 -1 (1+i) 1 -1 F = G + +... + Functionally represented as (G/ i) (F/A,i%,N) - (NG/ i) Usually more practical to deal with annual and present equivalents, rather than future equivalent values i i i

63 Cash Flow Diagram for a Uniform Gradient Increasing by G Dollars per period 1234N-2N-1N G 2G 3G (N-3)G (N-2)G (N-1)G i = effective interest rate per period End of Period

64 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find A when given G:

65 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find A when given G: Find the annual equivalent value when given the uniform gradient amount Find A when given G: Find the annual equivalent value when given the uniform gradient amount

66 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find A when given G: Find the annual equivalent value when given the uniform gradient amount 1 N A = G - i(1 + i ) N - 1 Find A when given G: Find the annual equivalent value when given the uniform gradient amount 1 N A = G - i(1 + i ) N - 1

67 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find A when given G: Find the annual equivalent value when given the uniform gradient amount 1 N A = G - i(1 + i ) N - 1 Functionally represented as A = G ( A / G, i%,N ) Find A when given G: Find the annual equivalent value when given the uniform gradient amount 1 N A = G - i(1 + i ) N - 1 Functionally represented as A = G ( A / G, i%,N )

68 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find A when given G: Find the annual equivalent value when given the uniform gradient amount 1 N A = G - i(1 + i ) N - 1 Functionally represented as A = G ( A / G, i%,N ) The value shown in [ ] is the gradient to uniform series conversion factor and is presented in column 9 of Appendix C (represented in the above parenthetical expression). Find A when given G: Find the annual equivalent value when given the uniform gradient amount 1 N A = G - i(1 + i ) N - 1 Functionally represented as A = G ( A / G, i%,N ) The value shown in [ ] is the gradient to uniform series conversion factor and is presented in column 9 of Appendix C (represented in the above parenthetical expression).

69 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given G:

70 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given G: Find the present equivalent value when given the uniform gradient amount Find P when given G: Find the present equivalent value when given the uniform gradient amount

71 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given G: Find the present equivalent value when given the uniform gradient amount 1(1 + i ) N -1N P = G- ii (1 + i ) N (1 + i ) N Find P when given G: Find the present equivalent value when given the uniform gradient amount 1(1 + i ) N -1N P = G- ii (1 + i ) N (1 + i ) N

72 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given G: Find the present equivalent value when given the uniform gradient amount 1(1 + i ) N -1N P = G- ii (1 + i ) N (1 + i ) N Functionally represented as P = G ( P / G, i%,N ) Find P when given G: Find the present equivalent value when given the uniform gradient amount 1(1 + i ) N -1N P = G- ii (1 + i ) N (1 + i ) N Functionally represented as P = G ( P / G, i%,N )

73 RELATING A UNIFORM GRADIENT OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given G: Find the present equivalent value when given the uniform gradient amount 1(1 + i ) N -1N P = G- ii (1 + i ) N (1 + i ) N Functionally represented as P = G ( P / G, i%,N ) The value shown in{ } is the gradient to present equivalent conversion factor and is presented in column 8 of Appendix C (represented in the above parenthetical expression). Find P when given G: Find the present equivalent value when given the uniform gradient amount 1(1 + i ) N -1N P = G- ii (1 + i ) N (1 + i ) N Functionally represented as P = G ( P / G, i%,N ) The value shown in{ } is the gradient to present equivalent conversion factor and is presented in column 8 of Appendix C (represented in the above parenthetical expression).

74 RELATING GE0METRIC SEQUENCE OF CASH FLOWS TO PRESENT AND ANNUAL EQUIVALENTS Projected cash flow patterns changing at an average rate of f each period;

75 RELATING GE0METRIC SEQUENCE OF CASH FLOWS TO PRESENT AND ANNUAL EQUIVALENTS Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series; Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series;

76 RELATING GE0METRIC SEQUENCE OF CASH FLOWS TO PRESENT AND ANNUAL EQUIVALENTS Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series; A 1 is cash flow at end of period 1 Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series; A 1 is cash flow at end of period 1

77 RELATING GE0METRIC SEQUENCE OF CASH FLOWS TO PRESENT AND ANNUAL EQUIVALENTS Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series; A 1 is cash flow at end of period 1 A k = (A k-1 ) ( 1 +f ),2 < k < N Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series; A 1 is cash flow at end of period 1 A k = (A k-1 ) ( 1 +f ),2 < k < N

78 RELATING GE0METRIC SEQUENCE OF CASH FLOWS TO PRESENT AND ANNUAL EQUIVALENTS Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series; A 1 is cash flow at end of period 1 A k = (A k-1 ) ( 1 +f ),2 < k < N A N = A 1 ( 1 + f ) N-1 Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series; A 1 is cash flow at end of period 1 A k = (A k-1 ) ( 1 +f ),2 < k < N A N = A 1 ( 1 + f ) N-1

79 RELATING GE0METRIC SEQUENCE OF CASH FLOWS TO PRESENT AND ANNUAL EQUIVALENTS Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series; A 1 is cash flow at end of period 1 A k = (A k-1 ) ( 1 +f ),2 < k < N A N = A 1 ( 1 + f ) N-1 f = (A k - A k-1 ) / A k-1 Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series; A 1 is cash flow at end of period 1 A k = (A k-1 ) ( 1 +f ),2 < k < N A N = A 1 ( 1 + f ) N-1 f = (A k - A k-1 ) / A k-1

80 RELATING GE0METRIC SEQUENCE OF CASH FLOWS TO PRESENT AND ANNUAL EQUIVALENTS Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series; A 1 is cash flow at end of period 1 A k = (A k-1 ) ( 1 +f ),2 < k < N A N = A 1 ( 1 + f ) N-1 f = (A k - A k-1 ) / A k-1 f may be either positive or negative Projected cash flow patterns changing at an average rate of f each period; Resultant end-of-period cash-flow pattern is referred to as a geometric gradient series; A 1 is cash flow at end of period 1 A k = (A k-1 ) ( 1 +f ),2 < k < N A N = A 1 ( 1 + f ) N-1 f = (A k - A k-1 ) / A k-1 f may be either positive or negative

81 01234N A1A1 A 2 =A 1 (1+f ) A 3 =A 1 (1+f ) 2 A N =A 1 (1+f ) N - 1 End of Period Cash-flow diagram for a Geometric Sequence of Cash Flows

82 RELATING A GEOMETRIC SEQUENCE OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given A:

83 RELATING A GEOMETRIC SEQUENCE OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f ) Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f )

84 RELATING A GEOMETRIC SEQUENCE OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f ) A 1 1 + i P = ( P / A, -1, N ) ( 1 + f ) 1 + f Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f ) A 1 1 + i P = ( P / A, -1, N ) ( 1 + f ) 1 + f

85 RELATING A GEOMETRIC SEQUENCE OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f ) A 1 [1 – (1+i) –N (1+f) N ] P = i - f which may also be written as A 1 [1 - (P/F,i%,N) (F/P,f%,N)] P = i - f Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f ) A 1 [1 – (1+i) –N (1+f) N ] P = i - f which may also be written as A 1 [1 - (P/F,i%,N) (F/P,f%,N)] P = i - f

86 RELATING A GEOMETRIC SEQUENCE OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Note that the foregoing is mathematically equivalent to the following (i = f ): A 1 1 + i P = ( P / A -1, N )` 1 + f 1 + f Note that the foregoing is mathematically equivalent to the following (i = f ): A 1 1 + i P = ( P / A -1, N )` 1 + f 1 + f

87 RELATING A GEOMETRIC SEQUENCE OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS The foregoing may be functionally represented as A = P (A / P, i%,N ) The year zero “base” of annuity, increasing at constant rate f % is A 0 = P ( A / P, f %, N ) The future equivalent of this geometric gradient is F = P ( F / P, i%, N ) The foregoing may be functionally represented as A = P (A / P, i%,N ) The year zero “base” of annuity, increasing at constant rate f % is A 0 = P ( A / P, f %, N ) The future equivalent of this geometric gradient is F = P ( F / P, i%, N )

88 RELATING A GEOMETRIC SEQUENCE OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given A:

89 RELATING A GEOMETRIC SEQUENCE OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f ) P = A 1 N (1+i) -1 which may be written as Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f ) P = A 1 N (1+i) -1 which may be written as

90 RELATING A GEOMETRIC SEQUENCE OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f ) P = A 1 N (P/F,i%,1) Functionally represented as A = P (A / P, i%,N ) Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f ) P = A 1 N (P/F,i%,1) Functionally represented as A = P (A / P, i%,N )

91 RELATING A GEOMETRIC SEQUENCE OF CASH FLOWS TO ANNUAL AND PRESENT EQUIVALENTS Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f ) P = A 1 N (i+i)-1 which may be written as P = A 1 N (P/F,i%,1) Functionally represented as A = P (A / P, i%,N ) The year zero “base” of annuity, increasing at constant rate f % is A 0 = P ( A / P, f %, N ) The future equivalent of this geometric gradient is F = P ( F / P, i%, N ) Find P when given A: Find the present equivalent value when given the annual equivalent value ( i = f ) P = A 1 N (i+i)-1 which may be written as P = A 1 N (P/F,i%,1) Functionally represented as A = P (A / P, i%,N ) The year zero “base” of annuity, increasing at constant rate f % is A 0 = P ( A / P, f %, N ) The future equivalent of this geometric gradient is F = P ( F / P, i%, N )

92 INTEREST RATES THAT VARY WITH TIME Find P given F and interest rates that vary over N

93 INTEREST RATES THAT VARY WITH TIME Find P given F and interest rates that vary over N Find the present equivalent value given a future value and a varying interest rate over the period of the loan Find P given F and interest rates that vary over N Find the present equivalent value given a future value and a varying interest rate over the period of the loan

94 INTEREST RATES THAT VARY WITH TIME Find P given F and interest rates that vary over N Find the present equivalent value given a future value and a varying interest rate over the period of the loan F N P = -----------------  N (1 + i k ) Find P given F and interest rates that vary over N Find the present equivalent value given a future value and a varying interest rate over the period of the loan F N P = -----------------  N (1 + i k ) k + 1

95 NOMINAL AND EFFECTIVE INTEREST RATES Nominal Interest Rate - r - For rates compounded more frequently than one year, the stated annual interest rate. Effective Interest Rate - i - For rates compounded more frequently than one year, the actual amount of interest paid. i = ( 1 + r / M ) M - 1 = ( F / P, r / M, M ) -1 – M - the number of compounding periods per year Annual Percentage Rate - APR - percentage rate per period times number of periods. –APR = r x M Nominal Interest Rate - r - For rates compounded more frequently than one year, the stated annual interest rate. Effective Interest Rate - i - For rates compounded more frequently than one year, the actual amount of interest paid. i = ( 1 + r / M ) M - 1 = ( F / P, r / M, M ) -1 – M - the number of compounding periods per year Annual Percentage Rate - APR - percentage rate per period times number of periods. –APR = r x M

96 COMPOUNDING MORE OFTEN THAN ONCE A YEAR Single Amounts Given nominal interest rate and total number of compounding periods, P, F or A can be determined by F = P ( F / P, i%, N ) i% = ( 1 + r / M ) M - 1 Uniform and / or Gradient Series Given nominal interest rate, total number of compounding periods, and existence of a cash flow at the end of each period, P, F or A may be determined by the formulas and tables for uniform annual series and uniform gradient series. Single Amounts Given nominal interest rate and total number of compounding periods, P, F or A can be determined by F = P ( F / P, i%, N ) i% = ( 1 + r / M ) M - 1 Uniform and / or Gradient Series Given nominal interest rate, total number of compounding periods, and existence of a cash flow at the end of each period, P, F or A may be determined by the formulas and tables for uniform annual series and uniform gradient series.

97 CASH FLOWS LESS OFTEN THAN COMPOUNDING PERIODS Find A, given i, k and X, where: –i is the effective interest rate per interest period –k is the period at the end of which cash flow occurs –X is the uniform cash flow amount Use: A = X (A / F,i%, k ) Find A, given i, k and X, where: –i is the effective interest rate per interest period –k is the period at the beginning of which cash flow occurs –X is the uniform cash flow amount Use: A = X ( A / P, i%, k ) Find A, given i, k and X, where: –i is the effective interest rate per interest period –k is the period at the end of which cash flow occurs –X is the uniform cash flow amount Use: A = X (A / F,i%, k ) Find A, given i, k and X, where: –i is the effective interest rate per interest period –k is the period at the beginning of which cash flow occurs –X is the uniform cash flow amount Use: A = X ( A / P, i%, k )

98 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS

99 Continuous compounding assumes cash flows occur at discrete intervals, but compounding is continuous throughout the interval.

100 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS Continuous compounding assumes cash flows occur at discrete intervals, but compounding is continuous throughout the interval. Given nominal per year interest rate -- r, compounding per year -- M one unit of principal = [ 1 + (r / M ) ] M Continuous compounding assumes cash flows occur at discrete intervals, but compounding is continuous throughout the interval. Given nominal per year interest rate -- r, compounding per year -- M one unit of principal = [ 1 + (r / M ) ] M

101 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS Continuous compounding assumes cash flows occur at discrete intervals, but compounding is continuous throughout the interval. Given nominal per year interest rate -- r, compounding per year -- M one unit of principal = [ 1 + (r / M ) ] M Given M / r = p, [ 1 + (r / M ) ] M = [1 + (1/p) ] rp Continuous compounding assumes cash flows occur at discrete intervals, but compounding is continuous throughout the interval. Given nominal per year interest rate -- r, compounding per year -- M one unit of principal = [ 1 + (r / M ) ] M Given M / r = p, [ 1 + (r / M ) ] M = [1 + (1/p) ] rp

102 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS Continuous compounding assumes cash flows occur at discrete intervals, but compounding is continuous throughout the interval. Given nominal per year interest rate -- r, compounding per year -- M one unit of principal = [ 1 + (r / M ) ] M Given M / r = p, [ 1 + (r / M ) ] M = [1 + (1/p) ] rp Given lim [ 1 + (1 / p) ] p = e 1 = 2.71828 Continuous compounding assumes cash flows occur at discrete intervals, but compounding is continuous throughout the interval. Given nominal per year interest rate -- r, compounding per year -- M one unit of principal = [ 1 + (r / M ) ] M Given M / r = p, [ 1 + (r / M ) ] M = [1 + (1/p) ] rp Given lim [ 1 + (1 / p) ] p = e 1 = 2.71828 p 

103 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS Continuous compounding assumes cash flows occur at discrete intervals, but compounding is continuous throughout the interval. Given nominal per year interest rate -- r, compounding per year -- M one unit of principal = [ 1 + (r / M ) ] M Given M / r = p, [ 1 + (r / M ) ] M = [1 + (1/p) ] rp Given lim [ 1 + (1 / p) ] p = e 1 = 2.71828 ( F / P, r%, N ) = e rN Continuous compounding assumes cash flows occur at discrete intervals, but compounding is continuous throughout the interval. Given nominal per year interest rate -- r, compounding per year -- M one unit of principal = [ 1 + (r / M ) ] M Given M / r = p, [ 1 + (r / M ) ] M = [1 + (1/p) ] rp Given lim [ 1 + (1 / p) ] p = e 1 = 2.71828 ( F / P, r%, N ) = e rN p 

104 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS Continuous compounding assumes cash flows occur at discrete intervals, but compounding is continuous throughout the interval. Given nominal per year interest rate -- r, compounding per year -- M one unit of principal = [ 1 + (r / M ) ] M Given M / r = p, [ 1 + (r / M ) ] M = [1 + (1/p) ] rp Given lim [ 1 + (1 / p) ] p = e 1 = 2.71828 ( F / P, r%, N ) = e rN i = e r - 1 Continuous compounding assumes cash flows occur at discrete intervals, but compounding is continuous throughout the interval. Given nominal per year interest rate -- r, compounding per year -- M one unit of principal = [ 1 + (r / M ) ] M Given M / r = p, [ 1 + (r / M ) ] M = [1 + (1/p) ] rp Given lim [ 1 + (1 / p) ] p = e 1 = 2.71828 ( F / P, r%, N ) = e rN i = e r - 1 p 

105 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS Single Cash Flow Finding F given P Finding future equivalent value given present value F = P (e rN ) Functionally expressed as ( F / P, r%, N ) e rN is continuous compounding compound amount Predetermined values are in column 2 of appendix D of text Finding F given P Finding future equivalent value given present value F = P (e rN ) Functionally expressed as ( F / P, r%, N ) e rN is continuous compounding compound amount Predetermined values are in column 2 of appendix D of text

106 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS Single Cash Flow Finding P given F Finding present equivalent value given future value P = F (e -rN ) Functionally expressed as ( P / F, r%, N ) e -rN is continuous compounding present equivalent Predetermined values are in column 3 of appendix D of text Finding P given F Finding present equivalent value given future value P = F (e -rN ) Functionally expressed as ( P / F, r%, N ) e -rN is continuous compounding present equivalent Predetermined values are in column 3 of appendix D of text

107 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS Uniform Series Finding F given A Finding future equivalent value given a series of uniform equal receipts F = A (e rN - 1)/(e r - 1) Functionally expressed as ( F / A, r%, N ) (e rN - 1)/(e r - 1) is continuous compounding compound amount Predetermined values are in column 4 of appendix D of text Finding F given A Finding future equivalent value given a series of uniform equal receipts F = A (e rN - 1)/(e r - 1) Functionally expressed as ( F / A, r%, N ) (e rN - 1)/(e r - 1) is continuous compounding compound amount Predetermined values are in column 4 of appendix D of text

108 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS Uniform Series Finding P given A Finding present equivalent value given a series of uniform equal receipts P = A (e rN - 1) / (e rN ) (e r - 1) Functionally expressed as ( P / A, r%, N ) (e rN - 1) / (e rN ) (e r - 1) is continuous compounding present equivalent Predetermined values are in column 5 of appendix D of text Finding P given A Finding present equivalent value given a series of uniform equal receipts P = A (e rN - 1) / (e rN ) (e r - 1) Functionally expressed as ( P / A, r%, N ) (e rN - 1) / (e rN ) (e r - 1) is continuous compounding present equivalent Predetermined values are in column 5 of appendix D of text

109 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS Uniform Series Finding A given F Finding a uniform series given a future value A = F (e r - 1) / (e rN - 1) Functionally expressed as ( A / F, r%, N ) (e r - 1) / (e rN - 1) is continuous compounding sinking fund Predetermined values are in column 6 of appendix D of text Finding A given F Finding a uniform series given a future value A = F (e r - 1) / (e rN - 1) Functionally expressed as ( A / F, r%, N ) (e r - 1) / (e rN - 1) is continuous compounding sinking fund Predetermined values are in column 6 of appendix D of text

110 CONTINUOUS COMPOUNDING AND DISCRETE CASH FLOWS Uniform Series Finding A given P Finding a series of uniform equal receipts given present equivalent value A = P [e rN (e r - 1) / (e rN - 1) ] Functionally expressed as ( A / P, r%, N ) [e rN (e r - 1) / (e rN - 1) ] is continuous compounding capital recovery Predetermined values are in column 7 of appendix D of text Finding A given P Finding a series of uniform equal receipts given present equivalent value A = P [e rN (e r - 1) / (e rN - 1) ] Functionally expressed as ( A / P, r%, N ) [e rN (e r - 1) / (e rN - 1) ] is continuous compounding capital recovery Predetermined values are in column 7 of appendix D of text

111 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Continuous flow of funds suggests a series of cash flows occurring at infinitesimally short intervals of time

112 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Continuous flow of funds suggests a series of cash flows occurring at infinitesimally short intervals of time Given: – a nominal interest rate or r –p is payments per year Continuous flow of funds suggests a series of cash flows occurring at infinitesimally short intervals of time Given: – a nominal interest rate or r –p is payments per year

113 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Continuous flow of funds suggests a series of cash flows occurring at infinitesimally short intervals of time Given: – a nominal interest rate or r –p is payments per year [ 1 + (r / p ) ] p - 1 P = ------------------------------ r [ 1 + ( r / p ) ] p Continuous flow of funds suggests a series of cash flows occurring at infinitesimally short intervals of time Given: – a nominal interest rate or r –p is payments per year [ 1 + (r / p ) ] p - 1 P = ------------------------------ r [ 1 + ( r / p ) ] p

114 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Continuous flow of funds suggests a series of cash flows occurring at infinitesimally short intervals of time Given: – a nominal interest rate or r –p is payments per year [ 1 + (r / p ) ] p - 1 P = ------------------------------ r [ 1 + ( r / p ) ] p Given Lim [ 1 + ( r / p ) ] p = e r Continuous flow of funds suggests a series of cash flows occurring at infinitesimally short intervals of time Given: – a nominal interest rate or r –p is payments per year [ 1 + (r / p ) ] p - 1 P = ------------------------------ r [ 1 + ( r / p ) ] p Given Lim [ 1 + ( r / p ) ] p = e r p --> oo

115 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Continuous flow of funds suggests a series of cash flows occurring at infinitesimally short intervals of time Given: – a nominal interest rate or r –p is payments per year [ 1 + (r / p ) ] p - 1 P = ------------------------------ r [ 1 + ( r / p ) ] p Given Lim [ 1 + ( r / p ) ] p = e r For one year ( P / A, r%, 1 ) = ( e r - 1 ) / re r Continuous flow of funds suggests a series of cash flows occurring at infinitesimally short intervals of time Given: – a nominal interest rate or r –p is payments per year [ 1 + (r / p ) ] p - 1 P = ------------------------------ r [ 1 + ( r / p ) ] p Given Lim [ 1 + ( r / p ) ] p = e r For one year ( P / A, r%, 1 ) = ( e r - 1 ) / re r p --> oo

116 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding F given A

117 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding F given A Finding the future equivalent given the continuous funds flow Finding F given A Finding the future equivalent given the continuous funds flow

118 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding F given A Finding the future equivalent given the continuous funds flow F = A [ ( e rN - 1 ) / r ] Finding F given A Finding the future equivalent given the continuous funds flow F = A [ ( e rN - 1 ) / r ]

119 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding F given A Finding the future equivalent given the continuous funds flow F = A [ ( e rN - 1 ) / r ] Functionally expressed as ( F / A, r%, N ) Finding F given A Finding the future equivalent given the continuous funds flow F = A [ ( e rN - 1 ) / r ] Functionally expressed as ( F / A, r%, N )

120 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding F given A Finding the future equivalent given the continuous funds flow F = A [ ( e rN - 1 ) / r ] Functionally expressed as ( F / A, r%, N ) ( e rN - 1 ) / r is continuous compounding compound amount Finding F given A Finding the future equivalent given the continuous funds flow F = A [ ( e rN - 1 ) / r ] Functionally expressed as ( F / A, r%, N ) ( e rN - 1 ) / r is continuous compounding compound amount

121 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding F given A Finding the future equivalent given the continuous funds flow F = A [ ( e rN - 1 ) / r ] Functionally expressed as ( F / A, r%, N ) ( e rN - 1 ) / r is continuous compounding compound amount Predetermined values are found in column 6 of appendix D of text. Finding F given A Finding the future equivalent given the continuous funds flow F = A [ ( e rN - 1 ) / r ] Functionally expressed as ( F / A, r%, N ) ( e rN - 1 ) / r is continuous compounding compound amount Predetermined values are found in column 6 of appendix D of text.

122 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding P given A

123 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding P given A Finding the present equivalent given the continuous funds flow Finding P given A Finding the present equivalent given the continuous funds flow

124 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding P given A Finding the present equivalent given the continuous funds flow P = A [ ( e rN - 1 ) / re rN ] Finding P given A Finding the present equivalent given the continuous funds flow P = A [ ( e rN - 1 ) / re rN ]

125 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding P given A Finding the present equivalent given the continuous funds flow P = A [ ( e rN - 1 ) / re rN ] Functionally expressed as ( P / A, r%, N ) Finding P given A Finding the present equivalent given the continuous funds flow P = A [ ( e rN - 1 ) / re rN ] Functionally expressed as ( P / A, r%, N )

126 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding P given A Finding the present equivalent given the continuous funds flow P = A [ ( e rN - 1 ) / re rN ] Functionally expressed as ( P / A, r%, N ) ( e rN - 1 ) / re rN is continuous compounding present equivalent Finding P given A Finding the present equivalent given the continuous funds flow P = A [ ( e rN - 1 ) / re rN ] Functionally expressed as ( P / A, r%, N ) ( e rN - 1 ) / re rN is continuous compounding present equivalent

127 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding P given A Finding the present equivalent given the continuous funds flow P = A [ ( e rN - 1 ) / re rN ] Functionally expressed as ( P / A, r%, N ) ( e rN - 1 ) / re rN is continuous compounding present equivalent Predetermined values are found in column 7 of appendix D of text. Finding P given A Finding the present equivalent given the continuous funds flow P = A [ ( e rN - 1 ) / re rN ] Functionally expressed as ( P / A, r%, N ) ( e rN - 1 ) / re rN is continuous compounding present equivalent Predetermined values are found in column 7 of appendix D of text.

128 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding A given F

129 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding A given F Finding the continuous funds flow given the future equivalent Finding A given F Finding the continuous funds flow given the future equivalent

130 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding A given F Finding the continuous funds flow given the future equivalent A = F [ r / ( e rN - 1 )] Finding A given F Finding the continuous funds flow given the future equivalent A = F [ r / ( e rN - 1 )]

131 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding A given F Finding the continuous funds flow given the future equivalent A = F [ r / ( e rN - 1 )] Functionally expressed as ( A / F, r%, N ) Finding A given F Finding the continuous funds flow given the future equivalent A = F [ r / ( e rN - 1 )] Functionally expressed as ( A / F, r%, N )

132 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding A given F Finding the continuous funds flow given the future equivalent A = F [ r / ( e rN - 1 )] Functionally expressed as ( A / F, r%, N ) r / ( e rN - 1 ) is continuous compounding sinking fund Finding A given F Finding the continuous funds flow given the future equivalent A = F [ r / ( e rN - 1 )] Functionally expressed as ( A / F, r%, N ) r / ( e rN - 1 ) is continuous compounding sinking fund

133 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding A given P

134 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding A given P Finding the continuous funds flow given the present equivalent Finding A given P Finding the continuous funds flow given the present equivalent

135 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding A given P Finding the continuous funds flow given the present equivalent A = P [ r / ( e rN - 1 )] Finding A given P Finding the continuous funds flow given the present equivalent A = P [ r / ( e rN - 1 )]

136 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding A given P Finding the continuous funds flow given the present equivalent A = P [ r / ( e rN - 1 )] Functionally expressed as ( A / P, r%, N ) Finding A given P Finding the continuous funds flow given the present equivalent A = P [ r / ( e rN - 1 )] Functionally expressed as ( A / P, r%, N )

137 CONTINUOUS COMPOUNDING AND CONTINUOUS CASH FLOWS Finding A given P Finding the continuous funds flow given the present equivalent A = F [ re rN / ( e rN - 1 )] Functionally expressed as ( A / P, r%, N ) re rN / ( e rN - 1 ) is continuous compounding capital recovery Finding A given P Finding the continuous funds flow given the present equivalent A = F [ re rN / ( e rN - 1 )] Functionally expressed as ( A / P, r%, N ) re rN / ( e rN - 1 ) is continuous compounding capital recovery


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