EC4004 2008 Lecture6 Equilibrium Business Cycles

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EC4004 Lecture 6 Stephen Kinsella www.stephenkinsella.net Markets and the Macroeconomy III The Business Cycle

Transcript of EC4004 2008 Lecture6 Equilibrium Business Cycles

Page 1: EC4004 2008 Lecture6 Equilibrium Business Cycles

EC4004 Lecture 6

Stephen Kinsellawww.stephenkinsella.net

Markets and the Macroeconomy IIIThe Business Cycle

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Last TimeMarkets -> MacroeconomyIntertemporal Sub. Effect

Message: Households Respond over time to changes in interest

rates

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This Time: Business Cycles

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Definition

A non repeating pattern of economic growth and contraction about a trend.

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Model

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US Data

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US Data

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Irish Data

5 10 15 20 25 30 35

22.5

23.0

23.5

24.0

24.5

25.0

25.5Log Consumption !blue" and GDP !red" in Ireland, 1970!2006

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Irish Data

1970 1980 1990 20000

2.!1010

4.!1010

6.!1010

8.!1010

1.!1011

1.2!1011

Total Consumption !blue" and GDP !red" in Ireland, 1970"2006

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Real income is:

a.wL + i(B+K)

b.(w/P)L + i((B/P)+(K/P))

c.(w/P)L + i((B/P)+ K)

d.(w/P)L + i(B+ K)

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If the household opts to consume all its income it will be at point:

a. F

b. G

c. H

d. I

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Next Time

Barro Chapter 9.SULIS Tests