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The global economic crisis of 2007–2008 has pushed many advanced economies into a liquidity trap. We design a laboratory experiment on the effectiveness of policy measures to avoid expectation‐driven liquidity traps. Monetary policy alone is not sufficient to avoid liquidity traps, even if it preventively cuts the interest rate when inflation falls below a threshold. However, monetary policy augmented with a fiscal switching rule succeeds in escaping liquidity trap episodes. We measure the effect of fiscal policy on expectations, and report larger‐than‐unity fiscal multipliers at the zero lower bound. Experimental results in different treatments are well explained by adaptive learning. (JEL E70, C92, D83, D84, E52, E62) 相似文献
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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 endogenously among heterogeneous expectation rules, based upon their relative performance. Due to strong nonlinearities, a small fraction of pessimistic traders already has a large aggregate effect, leading to a crisis characterized by high interest rates for loans and low output. Our stylized model illustrates how animal spirits and heterogeneous expectations and, in particular, how coordination on pessimistic expectations amplifies crises and slows down recovery. (JEL E32, D83, D84) 相似文献
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