We find a significant negative effect of idiosyncratic stock-return volatility on investment. We address the endogeneity problem of stock return volatility by instrumenting for volatility with a measure of a firm's customer base concentration. We propose that the negative effect of idiosyncratic...

How does financial integration impact capital accumulation when countries differ in the efficacy of internal financial markets? We examine this question within a two-country incompletemarkets model featuring a specific financial friction: agents face uninsurable idiosyncratic risk in their...

This paper studies the effects of capital taxation in a dynamic heterogeneous-agent economy with uninsurable entrepreneurial risk. Although it allows for rich general-equilibrium effects and a stationary distribution of wealth, the model is highly tractable. This permits a clear analysis, not...