We propose a unied model of limited market integration, asset-price determination, leveraging, and contagion. Investors and firms are located on a circle, and access to markets involves participation costs that increase with distance. Despite the exante symmetry of investors, their strategies...

We study an overlapping-generations economy in which new agents innovate and introduce new products and firms. Innovation is stochastic. The new firms increase overall productivity, but also steal business from pre-existing firms and act as depreciation shocks for the human capital of existing...

We present a parsimonious and tractable general equilibrium model featuring acontinuum of overlapping generations, as in Blanchard (1985). In addition, we assumethat agents have standard utilities exhibiting constant relative risk aversion and canbe born with differing risk aversions and...

We study asset-pricing implications of innovation in a general-equilibrium overlapping-generations economy. Innovation increases the competitive pressure on existing firms and workers, reducing the profits of existing firms and eroding the human capital of older workers. Due to the lack of...

We study asset-pricing implications of innovation in a general-equilibrium overlapping- generations economy. Innovation increases the competitive pressure on existing firms and workers, reducing the profits of existing firms and eroding the human capital of older workers. Due to the lack of...