Animal Spirits, Heterogeneous Expectations and the Emergence of Booms and Busts
William Brock and
Cars Hommes ()
No def007, DISCE - Working Papers del Dipartimento di Economia e Finanza from Università Cattolica del Sacro Cuore, Dipartimenti e Istituti di Scienze Economiche (DISCE)
We introduce a simple equilibrium model of a market for loans, where households lend to firms based on heterogeneous expectations about their loan default probability. Agents select among heterogeneous expectation rules, based upon their relative performance. A small fraction of pessimistic traders already has a large aggregate effect, leading to a crisis characterized by high contract rates for loans and low output. Our stylized model illustrates how animal spirits and heterogeneous expectations amplify boom and bust cycles and how endogenous coordination on pessimistic expectations amplifies crises and slows down recovery. Taking heterogeneous expectations and bounded rationality into account is crucial for the timing of monetary or fiscal policy.
Keywords: Heterogeneous Expectations; Crises; Animal Spirits. (search for similar items in EconPapers)
JEL-codes: D83 D84 E32 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-mac
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Working Paper: Animal Spirits, Heterogeneous Expectations and the Emergence of Booms and Busts (2013)
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