We study the relation between firm growth and managerial incentive provision under moral hazard when a long-lived firm is operated by a sequence of managers. In our model, firms replace their managers not only upon poor performance to provide incentives, but also when outside managers are at a...

Sunk costs for R&D are an important determinant of the level of innovation in the economy. In this paper I recover them using a Markov equilibrium framework. The contribution is twofold. First, a model of industry dynamics which accounts for selection into R&D, capital accumulation and...

This paper considers the effect of status or relative income on work effort, combining experimental evidence from a gift-exchange game with the analysis of multi-country ISSP survey data. We find a consistent negative effect of others’ incomes on individual effort in both datasets. The...

Unrealistic optimism is a well documented phenomenon. This paper argues that it is important in many economic contexts. Focusing on start-up finance for businesses, optimism may be responsible for or consistent with features such as credit rationing or redlining that are normally taken as...

This paper investigates the relationship between infation uncertainty and investment using a panel of loan-level data from small businesses. Micro-level data makes it possible to study phenomena that are obscured in country or industry aggregates. The data show that periods of increased...

This paper shows that, with (partial) irreversibility, higher uncertainty reduces the impact effect of demand shocks on investment. Uncertainty increases real option values making firms more cautious when investing or disinvesting. This is confirmed both numerically for a model with a rich mix...

Uncertainty appears to vary strongly over time, temporarily rising by up to 200% around major shocks like the Cuban Missile crisis, the assassination of JFK and 9/11. This paper offers the first structural framework to analyze uncertainty shocks. I build a model with a time varying second...

This paper documents the delayed adoption of a major technological innovation: the adoption of the diesel locomotive in the US railway industry. Contrary to other instances of major technological innovations, the delay in the adoption of the diesel locomotive was not associated with an initial...