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Topic #12: Introduction to macroeconomics

Topic #12: Introduction to macroeconomics. Dr David Penn Associate Professor of Economics and Director of the Business and Economic Research Center. Focus of macroeconomics. Macroeconomics deals with economic aggregates including: Employment and unemployment,

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Topic #12: Introduction to macroeconomics

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  1. Topic #12: Introduction to macroeconomics Dr David Penn Associate Professor of Economics and Director of the Business and Economic Research Center

  2. Focus of macroeconomics • Macroeconomics deals with economic aggregates including: • Employment and unemployment, • Inflation and the level of prices, • Output (the economy’s total production), and • Trade balances and capital flows.

  3. Beginnings of Macroeconomics: The Great Depression • Unemployment rate (percent of workforce) • 1929: 3.2% (about three in a hundred) • 1933: 24.9% (about one in four) • Output • fell 27% from 1929 to 1933

  4. Images from the Great Depression Typical picture capturing the number of people who were unemployed and looking for a job. (Circa 1935)

  5. Images from the Great Depression Farm Security Administration: Destitute pea pickers in California. Mother of seven children. (Circa February 1936)

  6. Images from the Great Depression Dust Storm Near Beaver, Oklahoma. (July 14, 1935)

  7. Images from the Great Depression Farm Security Administration: farmers whose topsoil blew away joined the sod caravans of "Okies" on Route 66 to California. (Circa 1935)

  8. Images from the Great Depression Depression: "Runs on Banks": people milling about outside of bank. (Circa 1933)

  9. Images from the Great Depression Depression: Breadlines: long line of people waiting to be fed: New York City: in the absence of substantial government relief programs during 1932, free food was distributed with private funds in some urban centers to large numbers of the unemployed. (Circa February 1932)

  10. Images from the Great Depression The Unemployed Union: marchers south on Broadway: Camden New Jersey typical scene reflecting large population of unemployed in desperate need of work and looking for jobs. (Circa 1935)

  11. Images from the Great Depression Farm Security Administration: Migrant worker on California highway. (Circa 1935)

  12. Output in the Great Depression • Not until 1937 did output rise above its 1929 level. • By 1939, output was just 9% higher than in 1929. • Ten years later in 1939, the unemployment rate was still a very high 17%.

  13. Unemployment • Still very high through 1940 ten years into the depression • Began to fall in 1941

  14. Price level falls • The general level of prices fell greatly during the depression • Items that cost $10 in 1929 would cost $7.50 in 1933 • Wage rates fell 17%

  15. Great Depression • How did this happen? • What can policymakers do to prevent future depressions?

  16. Great Depression • Up until the 1930s, economists believed the economy could be studied by summing up its parts. • Manufacturing • Agriculture • Construction • In macroeconomics, the behavior of the whole economy is sometimes different than the sum of its parts • Examples: • Paradox of thrift • Rising cash levels and inflation

  17. Great Depression • Up until the 1930s, economists believed the economy was largely self-regulating • Unemployment would correct itself through falling wage rates • Interest rates would fall to encourage investment • Policy actions would make things worse

  18. Stabilization Policy • John Maynard Keynes – General Theory of Employment, Interest, and Money (1936)

  19. Stabilization Policy • Keynes’s theory: • the depression was caused by insufficient total demand; • the depression will not end on its own; • the government needs to boost total demand with large increases in spending and borrowing.

  20. Stabilization Policy • Policy tools: • Fiscal policy: • Government spending • Tax revenue • Monetary policy: • Money supply • Interest rates

  21. Long-term economic growth • Long-term growth has to do with increasing the standard of living • Different from the business cycle • Related to our productivity

  22. Inflation and deflation • Inflation – rise in the overall level of prices • Tends to erode purchasing power of income and distort decision making • Short-run – related to business cycle • Long-run – related to increases in the money supply

  23. International imbalances • Trade deficit – we buy more from foreigners than they buy from us. • Associated with net borrowing from overseas

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