In this paper we discuss how several macroeconomic features of the 2001-2009 period may have resulted from a process in which financial markets were trying to allocate risk between heterogeneous agents when productive investment opportunities are scarce. We begin by showing how heterogeneity in terms of risk tolerance can cause financial markets to propagate transitory shocks and induce higher output volatility, albeit with a higher mean. We then show how this simple heterogeneous agent framework can explain an expansion driven by the growth in consumer debt, and why the equilibrium path of such an economy is likely fragile. In particular, we demonstrate that the emergence of a small amount of asymmetric information can make the economy susceptible to changes in expectations that can induce large reversals of financial flows, the freezing of assets and a recession that can persist despite high productivity.
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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number
15110.
Length: Date of creation: Jun 2009 Date of revision: Handle: RePEc:nbr:nberwo:15110
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Find related papers by JEL classification: E3 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles E4 - Macroeconomics and Monetary Economics - - Money and Interest Rates G01 - Financial Economics - - General - - - Financial Crises
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