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A Risk-centric Model of Demand Recessions and Speculation

Ricardo Caballero () and Alp Simsek

No 13815, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: We theoretically analyze the interactions between asset prices, financial speculation, and macroeconomic outcomes when output is determined by aggregate demand. If the interest rate is constrained, a decline in risky asset valuations generates a demand recession. This reduces earnings and generates a negative feedback loop between asset prices and aggregate demand. In the recession phase, beliefs matter not only because they affect asset valuations but also because they determine the strength of the amplification mechanism. In the ex-ante boom phase, belief disagreements (or heterogeneous asset valuations) matter because they induce investors to speculate. This speculation exacerbates the crash by reducing high-valuation investors' wealth when the economy transitions to recession. Macroprudential policy that restricts speculation in the boom can Pareto improve welfare by increasing asset prices and aggregate demand in the recession.

Keywords: aggregate demand; asset prices; booms and recessions; exogenous and endogenous uncertainty; heterogeneous beliefs; interest rate rigidity; monetary and macroprudential policy; Speculation; the Fed put; Time-varying risk premium (search for similar items in EconPapers)
JEL-codes: E00 E12 E21 E22 E30 E40 G00 G01 G11 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cba, nep-mac and nep-ore
Date: 2019-06
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