II. Unit II A. Measuring Domestic Output, National Income, and the Price Level 1. Important facts about the GDP figure 2. Three accounting identities a.

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Presentation transcript:

II. Unit II A. Measuring Domestic Output, National Income, and the Price Level 1. Important facts about the GDP figure 2. Three accounting identities a. The expenditures approach to GDP b. The income approach to GDP c. The leakages/injections identity B. Macroeconomic Instability: Unemployment and Inflation 1. Types of unemployment 2. Economic and noneconomic costs of unemployment 3. Full employment... the goal defined 4. Redistributive and output effects of inflation

EXPENDITURES(NO GOV. OR INT'L TRADE) GDP - - C + ACTUAL I

EXPENDITURES(NO GOV. OR INT'L TRADE) GDP - - C + ACTUAL I CONSUMPTION... includes expenditures by households on...

GDP - - C + ACTUAL I CONSUMPTION... includes expenditures by households on... CONSUMPTIONoccurs when output goes to households. EXPENDITURES(NO GOV. OR INT'L TRADE)

) GDP - - C + ACTUAL I INVESTMENT (GROSS PRIVATE DOMESTIC INVESTMENT) I G 1. All final purchases of machinery, equipment, and tools by business enterprises 2. All construction (nongovernmental) 3. Changes in inventories EXPENDITURES(NO GOV. OR INT'L TRADE)

GDP - - C + ACTUAL I INVESTMENT occurs when output is retained by the business community (or sector). EXPENDITURES(NO GOV. OR INT'L TRADE)

GDP - - C + ACTUAL I INVESTMENT occurs when output is retained by the business community (or sector). Investment is the PHYSICAL creation of capital. EXPENDITURES(NO GOV. OR INT'L TRADE)

) GDP - - C + ACTUAL I CONSUMPTIONoccurs when output goes to households. INVESTMENT occurs when output is retained by the business community (or sector). EXPENDITURES(NO GOV. OR INT'L TRADE)

GDP - - C + ACTUAL I STUFF PRODUCED BY THE ECONOMY DURING THE YEAR EXPENDITURES(NO GOV. OR INT'L TRADE)

GDP - - C + ACTUAL I STUFF PRODUCED BY THE ECONOMY DURING THE YEAR STUFF WHICH GOES TO HOUSEHOLDS DURING THE YEAR EXPENDITURES(NO GOV. OR INT'L TRADE)

) GDP - - C + ACTUAL I STUFF PRODUCED BY THE ECONOMY DURING THE YEAR STUFF WHICH GOES TO HOUSEHOLDS DURING THE YEAR STUFF RETAINED BY BUSINESS SECTOR DURING THE YEAR EXPENDITURES(NO GOV. OR INT'L TRADE)

GDP - - C + ACTUAL I STUFF PRODUCED BY THE ECONOMY DURING THE YEAR STUFF WHICH GOES TO HOUSEHOLDS DURING THE YEAR STUFF RETAINED BY BUSINESS SECTOR DURING THE YEAR THE STUFF MUST GO SOMEWHERE.. EXPENDITURES(NO GOV. OR INT'L TRADE)

GDP - - C + ACTUAL I STUFF PRODUCED BY THE ECONOMY DURING THE YEAR STUFF WHICH GOES TO HOUSEHOLDS DURING THE YEAR STUFF RETAINED BY BUSINESS SECTOR DURING THE YEAR THE STUFF MUST GO SOMEWHERE.. AND THERE ARE ONLY TWO PLACES FOR IT TO GO!!! EXPENDITURES(NO GOV. OR INT'L TRADE)

) GDP - - C + ACTUAL I INVESTMENT (GROSS PRIVATE DOMESTIC INVESTMENT) I G 1. All final purchases of machinery, equipment, and tools by business enterprises 2. All construction (nongovernmental) 3. Changes in inventories EXPENDITURES(NO GOV. OR INT'L TRADE)

GDP - - C + ACTUAL I INVESTMENT occurs when output is retained by the business community (or sector). EXPENDITURES(NO GOV. OR INT'L TRADE)

GDP - - C + ACTUAL I INVESTMENT (GROSS PRIVATE DOMESTIC INVESTMENT) I G 1. All final purchases of machinery, equipment, and tools by business enterprises 2. All construction (nongovernmental) 3. Changes in inventories EXPENDITURES(NO GOV. OR INT'L TRADE)

GDP - - C + ACTUAL I INVESTMENT occurs when output is retained by the business community (or sector). EXPENDITURES(NO GOV. OR INT'L TRADE)

GDP - - C + ACTUAL I INVESTMENT (GROSS PRIVATE DOMESTIC INVESTMENT) I G 1. All final purchases of machinery, equipment, and tools by business enterprises 2. All construction (nongovernmental) 3. Changes in inventories EXPENDITURES(NO GOV. OR INT'L TRADE)

ASSUME: STANDARDIZED BOXES OF FINAL GOODS EACH PRICED AT $40

BUSINESS HOUSEHOLDS BOX WAREHOUSE

GDP C + ACTUAL I BOXES $160

BUSINESS HOUSEHOLDS BOX WAREHOUSE

GDP C + ACTUAL I BOXES 2 BOXES $80 $160

BUSINESS HOUSEHOLDS BOX WAREHOUSE

GDP C + ACTUAL I BOXES 2 BOXES $80 $160 2 BOXES $80

BUSINESS HOUSEHOLDS BOX WAREHOUSE

GDP C + ACTUAL I BOXES $160

BUSINESS HOUSEHOLDS BOX WAREHOUSE

GDP C + ACTUAL I BOXES $160 6 BOXES $240

BUSINESS HOUSEHOLDS BOX WAREHOUSE

BUSINESS HOUSEHOLDS BOX WAREHOUSE

BUSINESS HOUSEHOLDS BOX WAREHOUSE

BUSINESS HOUSEHOLDS BOX WAREHOUSE

GDP - - C + ACTUAL I INVESTMENT (GROSS PRIVATE DOMESTIC INVESTMENT) I G 1. All final purchases of machinery, equipment, and tools by business enterprises 2. All construction (nongovernmental) 3. Changes in inventories EXPENDITURES(NO GOV. OR INT'L TRADE)

BUSINESS HOUSEHOLDS BOX WAREHOUSE

BUSINESS HOUSEHOLDS BOX WAREHOUSE

GDP C + ACTUAL I BOXES $160 6 BOXES $ BOXES -$80

BUSINESS HOUSEHOLDS BOX WAREHOUSE

BUSINESS HOUSEHOLDS BOX WAREHOUSE

BUSINESS HOUSEHOLDS BOX WAREHOUSE

BUSINESS HOUSEHOLDS BOX WAREHOUSE

BUSINESS HOUSEHOLDS BOX WAREHOUSE $40 SKYSCRAPER

BUSINESS HOUSEHOLDS BOX WAREHOUSE $40 SKYSCRAPER

BUSINESS HOUSEHOLDS BOX WAREHOUSE

GDP C + ACTUAL I BOXES $160

BUSINESS HOUSEHOLDS BOX WAREHOUSE

GDP C + ACTUAL I BOXES $160 4 BOXES $160

BUSINESS HOUSEHOLDS BOX WAREHOUSE

GDP C + ACTUAL I BOXES $160 4 BOXES $160 0 BOXES $0

GDP C + ACTUAL I BOXES $160 WHY "ACTUAL"?

Suppose producer wishes to increase the inventories he is carrying by 2 boxes during the year. Suppose he that he can sell 4 boxes during the year. He will therefore produce 6 boxes. believes EXPENDITURES(NO GOV. OR INT'L TRADE)

Suppose producer wishes to increase the inventories he is carrying by 2 boxes during the year. He will therefore produce 6 boxes. Suppose he sells only 2 boxes. actually Suppose he that he can sell 4 boxes during the year. believes

Suppose producer wishes to increase the inventories he is carrying by 2 boxes during the year. He will therefore produce 6 boxes. ACTUAL I IS 4 BOXES. PLANNED I IS ONLY 2 BOXES. Suppose he that he can sell 4 boxes during the year. believes Suppose he sells only 2 boxes. actually

Suppose producer wishes to increase the inventories he is carrying by 2 boxes during the year. Suppose he believes that he can sell 4 boxes during the year. He will therefore produce 6 boxes. believes Suppose he actually sells only 2 boxes. actually ACTUAL I IS 4 BOXES. PLANNED I IS ONLY 2 BOXES. HE "ACCIDENTALLY" BUYS 2 EXTRA BOXES