Banking and Foreign Exchange

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Presentation transcript:

Banking and Foreign Exchange Slides by M. Shamos, CMU

World banking system Central banks Money supply measures What banks do Foreign exchange 52

World Banking System BANK FOR INTERNATIONAL SETTLEMENTS UNITED NATIONS AGENCY (DEVELOPMENT LENDER) 184 MEMBERS ASSETS: $230B WASHINGTON, DC BANK FOR INTERNATIONAL SETTLEMENTS (A BANK FOR 45 CENTRAL BANKS, $130B) BASEL, SWITZERLAND INTERNATIONAL MONETARY FUND (PUBLIC POLICY LENDER $300B) 182 MEMBER COUNTRIES WASHINGTON, DC PRIVATELY OWNED CENTRAL BANKS U.S. FEDERAL RESERVE DEUTSCHE BUNDESBANK SWISS NATIONAL BANK S. AFRICAN RESERVE BANK MIXED-OWNERSHIP CENTRAL BANKS BELGIUM BANK OF JAPAN HONG KONG HKMA GOVERNMENT-OWNED CENTRAL BANKS BANQUE DE FRANCE BANK OF ENGLAND PEOPLE’S BANK OF CHINA CENTRAL BANK OF INDIA PRIVATE BANKS AND CREDIT INSTITUTIONS PRIVATE BANKS AND CREDIT INSTITUTIONS PRIVATE BANKS AND CREDIT INSTITUTIONS SOURCE: TRANSACTION.NET 52

Central Banks Legal tender (“real money”) is issued by central banks (and banks operating under their authority) U.S.: Federal Reserve Bank How do banks pay each other? Through accounts in the central bank (directly or indirectly) 52

VALUE TRANSFERRED FROM Payment System Layers VALUE TRANSFERRED FROM BANK TO BANK ON BOOKS OF CENTRAL BANK CENTRAL BANK FINAL SETTLEMENT INTERBANK SYSTEMS Transportation/Exchanges CLEARING Securities Financial markets Risk/Credit Management Head Office BANK A Head Office BANK B BANKS 3 2 2 3 Branch A1 Branch B1 Branch B2 Branch A2 SETTLEMENT BETWEEN BRANCHES AND CUSTOMERS’ ACCOUNTS 3 2 1 Client B Client B1 Client B2 Client A Client A1 Client A2 SOURCE: WORLD BANK

Cash Transaction BUYER SELLER CENTRAL BANK BUYER’S SELLER’S 1. CENTRAL BANK ISSUES FIDUCIARY MONEY (ANTI-FORGERY) + (SERIAL NUMBERS) 2. CENTRAL BANK SELLS CASH TO BUYER’S BANK 3. BUYER’S BANK ALLOWS BUYER TO DRAW CASH FROM BUYER’S ACCOUNT CENTRAL BANK BUYER’S SELLER’S BUYER SELLER 7. SELLER’S BANK SENDS CASH TO CENTRAL BANK 6. SELLER’S BANK CREDITS SELLER’S BANK ACCOUNT 5. SELLER DEPOSITS CASH IN SELLER’S BANK ACCOUNT 4. BUYER PHYSICALLY GIVES CASH TO SELLER 52

Money Supply Money supply (US, November 2003, in USD) M0 (currency = coins & notes) 661B M1 (spendable now) 1281B (liquid = M0 + non-interest deposits + travelers checks) M1 IS MONEY AVAILABLE FOR PAYMENTS M2 (M1+ time deposits + bank CDs) 6.07T M3 (M2 + large time deposits + institutional money funds) 8.86T 52

SOURCE: FEDERAL RESERVE The U.S. Money Supply Currency 661 (2/3 outside the U.S.) Non-bank travelers cheques 7 Demand deposits 306 Other checkable deposits 307 . M1 Total 1281 USD Savings 3155 Small time deposits <100K 810 . Retail money market funds 825 M2 Total 6071 USD Large time deposits >100K 876 . Institutional money funds 1129 Bank agreements 502 Eurodollars 282 M3 Total 8860 USD . In billion USD Nov. 30, 2003 SOURCE: FEDERAL RESERVE

Function of Banks Central banks: Issue fiduciary money (both token and notational) All other (non-central) banks: Issue notational scriptural money (bank accounts) Not fiduciary (“real money”), not token Non-central banks Move notational money Accept deposits (loans from depositors) Loan deposits to others (borrowers) 52

What is a Bank Account? Notational representation of a loan to the bank from a depositor Once the depositor puts money in his account, it becomes the bank’s money, not the depositor’s When the bank deposits its money in the central bank, it becomes fiduciary (real) money The bank then owes the depositor real money Effect of deposit: bank ends up with more real money I HAVE $800. BANK OWES ME $200 (MY “ACCOUNT”) BANK HAS $200 MORE MONEY NOW I DEPOSIT $200 IN THE BANK I HAVE $1000 BANK DEPOSITS $200 IN CENTRAL BANK MY ASSETS: $1000 CASH MY ASSETS: $800 CASH +$200 OWED BY BANK BANK’S ASSETS: +$200 REAL MONEY - $200 DEBT 52

Benefit of a Bank Deposit Bank can loan the money (more than was deposited!) invest the money move the money, e.g. make payments buy foreign currency with the money Reserve ratio Fraction of deposits the bank must keep in the central bank If the reserve ratio is 25%, then for a $1000 deposit, the bank can lend out $3000 52

Foreign Exchange Currency = token fiduciary money of a central bank Every bank account is denominated in one currency Most banks allow accounts in only one currency All currencies have three-letter ISO currency codes: USD (U.S. dollar) JPY (Japan yen) GBP (Great Britain pound) CHF (Swiss franc) HKD (Hong Kong dollar) EUR (Euro) Usually, the first two letters indicate the country; third letter is the first letter of the currency name Foreign exchange is a barter transaction To buy GBP for USD, buyer has to find someone with GBP who wants USD 52

Foreign Exchange Every bank must have an account at the central bank (or with another bank that has a central account) The account is (usually) denominated in that country’s currency and is used to settle obligations in that currency Hong Kong is an exception. It has systems for transacting in HKD, USD and EUR. A foreign exchange transaction requires two settlements, one in each currency Therefore, two countries’ central banks (or settlement systems) are involved (except in HK) 52

Foreign Exchange Example Buyer in the US wants to pay an invoice in GBP from Seller in the UK Buyer needs GBP. Where does he get them? Where does he put them? This is done through banks. Bank B (buyer) in the U.S. buys 1 million GBP for 1.78 million USD from Bank S (seller) in the UK Bank B must have an account denominated in GBP somewhere, probably at Bank C in the UK Bank S must have an account denominated in USD somewhere, probably at Bank T in the US 52

Foreign Exchange Example BANK T (US) BANK S USD ACCOUNT US BANKS (NOSTRO ACCOUNT) BANK S (UK) WILLING TO SELL 1 MILLION GBP FOR USD BANK B (US) WANTS TO BUY 1 MILLION GBP FOR USD BANK C (UK) BANK B GBP ACCOUNT (NOSTRO ACCOUNT) UK BANKS US FEDERAL RESERVE BANK BANK B USD ACCOUNT BANK T USD ACCOUNT THE BANK OF ENGLAND BANK S GBP ACCOUNT BANK C GBP ACCOUNT CENTRAL BANKS SETTLEMENT ONE: BANK B PAYS 1.78 MILLION USD TO BANK T SELLER S NOW HAS 1.78 MILLION USD IN BANK T SETTLEMENT TWO: BANK S TRANSFERS 1 MILLION GBP TO BANK C BUYER B NOW HAS 1 MILLION GBP IN BANK C 52

Clearance v. Settlement Messaging Transmission of payment orders Clearance Determining the net effect of multiple payment orders How much does each party owe or is owed? Settlement Actual payment, often involving a central bank Foreign exchange requires two settlements Exchange HKD (HK dollars) to JPY (Japanese ¥) requires settlement in both HKD and JPY

Gross v. Net Settlement Systems Gross settlement system: every transaction is processed separately (usually immediately) Example: cash purchase, large-value bank transfers Problem: transaction overhead, network load Net settlement system: transactions are batched Example: credit cards Merchant is paid once per day, not for each sale Customer is billed once per month Problem: delay. Time is the enemy of money.

Payment Graphs “A OWES B $31” “A HAS $49; B HAS $16; A OWES B $31” 23 “A OWES B $31” A 16 F 8 7 C 49 31 16 B 9 15 A 10 D 14 44 “A HAS $49; B HAS $16; A OWES B $31” E 31 G 17 55 H 12 96 49 (+15) 16 (-12) 31 A B 13 I “A HAS $49; B HAS $16; A OWES B $31; A IS OWED NET $15; B OWES NET $12” WITH N PARTIES, NUMBER OF POSSIBLE DEBTS IS N(N-1)/2 10,000 BANKS, 50 MILLION PAYMENTS 52

Gross Settlement Each debt is settled individually # of payments = # of debts Here, 16 payments required Collection is a problem (failure to pay) RTGS = “real-time gross settlement,” immediate payment B 31 23 A 16 F 8 7 C 9 15 10 D 14 44 E 31 G 17 55 H 12 96 13 I 52

Net Settlement Compute net amount owed or owing for each party Net debtors make one payment to the “clearing house” Net creditors receive one payment from the clearing house # of payments = # of parties 10,000 banks = 10,000 payments, not 50 million (+24) B 31 23 (-23) (+15) A 16 F 8 (-46) 7 C (+52) 9 15 10 D 14 44 (+68) (+90) E 31 G 17 55 H 12 96 (-85) 13 I (-95) 52

Net Settlement A B C D E F G H I B A F C D E G H I +249 23 31 96 7 8 15 16 10 9 55 44 13 14 17 12 (+24) (+15) (+90) (-95) (-23) (+52) (-85) (-46) (+68) (+24) B (-23) (+15) A F (-46) C (+52) D (+68) (+90) E G H (-85) I 46 (-95) 85 23 95 NET CREDITOR CLEARING HOUSE NET DEBTOR +249 52

Net Settlement B B A A F F C C D D E G E G H H I I +249-249 = 0 (+24) 31 23 (-23) (+15) (-23) (+15) A 16 A F F 8 (-46) 7 (-46) C C (+52) 9 15 (+52) 10 14 D D 44 (+68) (+68) (+90) (+90) 31 E G E G 17 55 H 12 H 96 (-85) (-85) 13 I I (-95) (-95) 52 24 68 15 NET CREDITOR 90 CLEARING HOUSE NET DEBTOR +249-249 = 0 52

Net v. Gross Settlement Net settlement requires “clearing” Determining the net amounts owed or owing Need a separate clearing house Introduces delay (for clearing) Reduces counterparty risk Used for large numbers of small payments, e.g. cheques, credit cards Gross settlement can be instantaneous (< 1 minute) Gross settlement involves a large number of payments; used for large transactions, e.g. interbank transfers

Clearing and Settlement Net systems interfaces Low value payments Large value payments Central Bank National Clearing Centres Real Time Gross Settlement System RTGS Electronic Net systems interfaces Settlement accounts CB Interfaces Liquidity G/L Monitoring Cards End of day Net balances Queuing mechanism Securities Exchange interface Balances Real Time Commercial Bank Interface Electronic transactions HQ commercial banks Regional clearing Regional offices paper Local offices Local clearing paper Commercial banks ATM, POS, PHONE, INTERNET, E-COMMERCE Clients Clients Clients SOURCE: WORLD BANK

Payment Orders (Checks) NUMBER MAKER (DRAWER) DATE PAYEE AMOUNT CURRENCY DRAWEE BANK DRAWEE BANK NUMBER ACCOUNT NUMBER AUTHORIZED SIGNATURE OF MAKER’S AGENT THIS CHECK IS AN ORDER TO MELLON BANK TO PAY $100 TO PAYEE OR HIS TRANSFEREE FROM THE CARNEGIE MELLON UNIVERSITY ACCOUNT

Check Processing Encode Sort/Balance Clearing House “On-Us” BANK A’S Deposit Ticket Check “On-Us” Deposit Ticket Check Encode Sort/Balance BANK A’S DEPOSITS Cash Letter Check Clearing House Cash Letter Check “Clearing House” OTHER BANKS “Direct Sends” BANK B SOURCE: PNCBANK

U.S. Cheque Clearing 26 billion checks ~40 billion checks transported returned SOURCE: CELENT 52

Clearing Payment Orders (Check) CUSTOMER CMU OF MELLON BANK 1. CMU SENDS CHECK TO SHAMOS CUSTOMER SHAMOS OF CITIBANK “PAY SHAMOS $100” 9. MELLON SENDS CHECK BACK TO CMU 2. SHAMOS DEPOSITS CHECK AT CITI MELLON BANK CUSTOMER A CUSTOMER CMU . . . CUSTOMER Y CUSTOMER Z 8. CLEARING HOUSE SENDS CHECK TO MELLON CITIBANK CUSTOMER A CUSTOMER B . . . SHAMOS CUSTOMER Z 4. CITI SENDS CHECK TO CLEARING HOUSE -100 CLEARING HOUSE (FEDERAL RESERVE) MELLON BANK A . . . BANK Z CITIBANK +100 6. CLEARING HOUSE SENDS MELLON DEBIT INFO -100 7. MELLON DEDUCTS $100 FROM CMU ACCOUNT 3. CITIBANK CREDITS SHAMOS WITH $100 +100 5. CLEARING HOUSE ADDS $100 TO CITI, SUBTRACTS $100 FROM MELLON

Settling Payment Orders (Checks) 1. AT END OF DAY, EACH BANK HAS A NET POSITIVE OR NEGATIVE CLEARING HOUSE BALANCE 2. BANKS WITH NEGATIVE BALANCES MUST PAY; THOSE WITH POSITIVE BALANCES RECEIVE MONEY REAL-TIME GROSS SETTLEMENT SYSTEM (FEDWIRE) MELLON BANK A . . . BANK Z CITIBANK CLEARING HOUSE +34,299,321 6. CLEARING HOUSE PAYS MELLON $34,299,321 4. CITI PAYS THE CLEARING HOUSE THROUGH RTGS -107,071,775 MELLON BANK CUSTOMER A CUSTOMER CMU . . . CUSTOMER Y CUSTOMER Z +3167 -15085 +728103 +35529 CITIBANK CUSTOMER A CUSTOMER B . . . SHAMOS CUSTOMER Z +100 +2786 -988713 -31872 +107,071,775 CLEARING HOUSE (FEDERAL RESERVE) MELLON BANK A . . . BANK Z CITIBANK +34,299,321 -107,071,775 3. CLEARING HOUSE INFORMS CITI IT MUST PAY $107,071,775 5. CLEARING HOUSE ADVISES MELLON IT WILL RECEIVE $34,299,321

Checks U.S. -- 63 billion checks per year, average $1100 80% of noncash payments made by check “On-Us” (payor and payee in same bank -- 30%) Interbank (payor and payee in different banks) --requires settlement Direct presentment (“direct sends”) Correspondent banks Clearing house associations (150) Federal Reserve system (15 billion checks/year, 27%) Complex laws re bank liability in check processing 52

Major Ideas Central banks play a central role in money movement Payment requires M1 Foreign exchange requires two settlements Gross v. net settlement Check processing is cumbersome: requires clearing and settlement. 52