ECON 204 Lecture Notes - Lecture 15: Business Cycle, Macroeconomic Model, Aggregate Supply

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The modern macroeconomic model is a synthesis of the classical model (for the long-run) & the keynesian model (for the short-run) Prices are much more flexible over the long-run than over the short-run. Say"s law holds over the long-run but not over the short-run o o. In the short-run, economy reflects the keynesian model. Determinants of economic growth in the modern macroeconomic model. Internal market forces: population, spending, capital, technology. External shocks: wars, natural disasters, terrorist attacks, trade disruptions. Look to each investor to see what to do. Economy will stay stuck in a stagnation that it won"t get going. Investment is needed to jump start the economy o. Fiscal policies: government spending & taxes: monetary policies: control over the money supply & the banking system o. We will develop a simple version of the modern macroeconomic model that will allow us to analyze the effects of internal market forces, external shocks & government policies.

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