ECN 204 Chapter Notes - Chapter 11: Barter, Xm Satellite Radio, John Maynard Keynes

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We have seen in chapter 10 three basic relationships: how income relates to consumption and saving, how the interest rate affects investment spending, and how changes in spending work through the system to create larger changes in output. In this chapter we build the more theoretically rigorous explanation for these relationships the aggregate expenditures (ae) model The chapter begins with the simple version of the ae model, that of a closed, private economy. Equilibrium gdp is determined and multiplier effects are briefly reviewed. The simplified closed economy is then opened to show how it would be affected by exports and imports. Government spending and taxes are brought into the model to include the public aspects of the system. Finally, the model is applied to two historical periods in order to consider some of the model"s deficiencies. The price level is assumed constant in this chapter unless stated otherwise, so the focus is on real gdp.

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