ECN 204 Chapter Notes - Chapter 6: Demand Shock, Nominal Rigidity

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Ecn 204 chapter 6 - introduction to macro. Is an increase in the overall level of prices. Investment occurs when resources are devoted to increasing future output: building a new research facility in which scientists invent the next generation of fuel-efficient automobiles, or by constructing a super-efficient factory. Investment amount is limited by amount of saving: to increase savings, present consumption is limited. 6. 4 uncertainty, expectations, shocks, and short-run fluctuations: decisions about saving and investment are complicated by the fact that future is uncertain. Instead because prices are inflexible, the economy is forced to respond in the short run to demand shocks primarily through changed in output and employment rather than through changes in prices. Price changes if there are demand shocks and flexible prices. If prices were fully flexible, no short run fluctuations in output: no changes in unemployment.

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