Ljungqvist and Sargent (2017) (LS) show that unemployment fluctuations can be understood in terms of a quantity they call the "fundamental surplus." However, their analysis ignores risk premia, a force that Hall (2017) shows is important in understanding unemployment fluctuations. We show how...

We analyze the consequences of ambiguity aversion in the Diamond-Mortensen-Pissarides (DMP) search and matching model. Our model features a cross-section of workers whose productivity is the sum of an aggregate and a match-specific component. Firms are ambiguity averse towards match-specific...

We build a dynamic capital structure model to study the link between systematic risk exposure and debt maturity, as well as their joint impact on the term structure of credit spreads. Our model allows for time variation and lumpiness in the maturity structure. Relative to short-term debt,...

I provide an explanation for the puzzle of slow recovery of aggregate real variables from financial crises. My model features a representative investor who finances firms with optimal long-term contracts derived from a moral hazard problem. An increase in uncertainty about firm-productivity...