We propose a model that explains the relationship between wealth distribution and asset prices over the business cycles. The model features an economy with a continuum of agents and with both idiosyncratic and aggregate shock a la Krusell and Smith (1998). However, we allow agents to trade in a...

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 their wealth is scarce, insiders earn a rate of return higher...

We look for historical evidence in favor or against the hypothesis that ``technological revolutions" cause macroeconomic ``debt hangovers". We qualify as ``technological revolution" a period of major technological innovation, as for instance the Information-Technology revolution of the 1990s. By...

This paper builds a continuous time model of government saving behavior. The model features rulers that rotate out of power. The ruler makes two decisions: a. total spending expenditure; and b. the composition of spending between two goods, one with public benefits and another with private...

We extend the basic Schumpeterian endogenous growth model by allowing incumbents to undertake innovations to improve their products, while entrants engage in more "radical" innovations to replace incumbents. Our model provides a tractable framework for the analysis of growth driven by both entry...