Microeconomic lumpiness matters for macroeconomics. According to our DSGE model, it is responsible for 92 percent of the smoothing in the investment response to aggregate shocks, and it introduces important nonlinearities and history dependance in business cycles and policy sensitivity. General...

We develop a model of investment with financial constraints and use it to investigate the relation between investment and Tobin’s q. A firm is financed partly by insiders, who control its assets, and partly by outside investors. When insiders’ wealth is scarce, they earn a rate of...

In a model with housing collateral, the ratio of housing wealth to human wealth shifts the conditional distribution of consumption growth. In the model, a decrease in house prices reduces the collateral value of housing, increases household exposure to idiosyncratic risk, reduces the amount of...

This paper compares wealth portfolios across countries. The household sector in the US and Canada owns much more financial wealth, and much less housing wealth, than the household sector in most of Europe. We address this fact using a calibrated two sector growth model with endogenous financial...

This paper investigate how the degree of credit market development is related to business cycle fluctuations in industrialized countries. I show that a business cycle model with collateral constraints generate a negative relation between the volatility of the cyclical component of output and the...

How will capital market imperfections, such as private information and costly state verification, affect international capital market flows between countries that are identical in every way but their initial capital stocks? To answer this question, we devise a dynamic infinite-horizon model with...

We ask for which part of the observed cross-country differences in the level of per-capita income monopoly rights can account. We answer this question in a calibrated growth model with capital. Monopoly rights in the capital-producing sector shield labor market insiders from the competition by...

We use a modified version of the Lagos-Wright model to introduce an essential role for banks. Due to preference shocks, agents have excess demand for or supply of money balances. Banks arise to reallocate excess cash by taking deposits from sellers and making loans to buyers. We consider two...

We ask whether the three-sector neoclassical growth model can account for the large cross-country differences in the levels of per-capita income, in the stocks of physical and human capital, and in the relative prices of capital. We use a version in which one sector produces services, a second...