ECO 2143 Chapter Notes - Chapter 19-24: Quantitative Easing, Business Cycle, Life Insurance

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The nominal interest rate tells us how much more a dollar spent tomorrow is worth today. The real exchange rate tells us how much more a good today is worth tomorrow. Since t increase in money growth diminishes both r and i. In the medium run, however, expected inflation stabilizes and there is no effect on r even if the effect continues on i1. The expected present discounted value of a sequence of payments is the value this year of the expected sequence. V =zt+ e zt+1 (1+it) e zt +2 e ) (1+it)(1+it +1 e zt +3 e )(1+it +2 e ) (1+it)(1+it +1. Investment decisions (and, by extension, the is curve), depend on r as firms want to know how much they"ll have to repay in terms of goods. Monetary decisions (and, by extension, the lm curve), depend on i as it is the opportunity cost of holding money.

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