Why do fire sales occur if many risks are hedgeable? We study a version of Brunnermeier and Sannikov (2014) in which all fundamental risks can be hedged frictionlessly. Our analysis shows that fire sales are inherently self-fulfilling. Fundamental shocks can never cause fire sales, and an...

We study the global dynamics of the fully stochastic nonlinear version of the New Keynesian model and analyze the efficacy of various policies as equilibrium selection tools in this context. First, we unveil a new class of equilibria, characterized by selffulfilled beliefs about output...

We discover sentiment-driven equilibria in popular models of imperfect risk sharing. In these equilibria, sentiment dynamics behave like uncertainty shocks, in the sense that self-fulfilled beliefs about volatility drive aggregate fluctuations. Because such fluctuations can decouple from the...

We discover sentiment-driven equilibria in popular models of imperfect risk sharing. In these equilibria, sentiment dynamics behave like uncertainty shocks, in the sense that self-fulfilled beliefs about volatility drive aggregate fluctuations. Because such fluctuations can decouple from the...

We study the global dynamics of the fully stochastic nonlinear version of the New Keynesian model and analyze the efficacy of various policies as equilibrium selection tools in this context. First, we unveil a new class of equilibria, characterized by selffulfilled beliefs about output...

Why do fire sales occur if many risks are hedgeable? We study a version of Brunnermeier and Sannikov (2014) in which all fundamental risks can be hedged frictionlessly. Our analysis shows that fire sales are inherently self-fulfilling. Fundamental shocks can never cause fire sales, and an...

We study a multi-location model with financial market segmentation that permits self-fulfilling fluctuations. Such fluctuations are necessarily idiosyncratic, but their volatility varies systematically with an aggregate latent factor. We thus provide a coordination-based microfoundation for...

Two intermediary-based factors - a broad financial distress measure and a dealer corporate bond inventory measure - explain about 50% of the puzzling common variation of credit spread changes beyond canonical structural factors. A simple model, in which intermediaries facing margin constraints...

We study a segmented-markets setting in which self-fulfilling volatility can arise. The only requirements are (i) asset price movements redistribute wealth across markets (e.g., equities rise as bonds fall) and (ii) some stabilizing force keeps valuation ratios stationary (e.g., cash flow growth...