Reputation systems have emerged as important sources of information in modern economies. This paper develops a model of reputation systems that puts buyers and sellers inside a stochastic environment involving asymmetric information and search frictions, and gives them a set of options with...

This paper develops a general equilibrium model of world trade, based on the technology proposed by Eaton and Kortum. We study the existence and uniqueness of equilibrium. We propose and test an algorithm for calculating equilibria. We test the ability of a calibrated version of the model to...

This paper proposes the view that financial development and economic growth are linked through the characteristics of technology. Perhaps the most obvious connection between technology and financial innovation emerges through risk-sharing. Technology is modeled as a distribution function over...

We show that it is impossible to achieve collusion in a duopoly when (1) the prices depend only on the sum of the firms' supplies (2) firms are able to respond to new information quickly and (3) the likelihood ratio for detection of each deviation is a continuous process (so that new information...

This paper studies the provision of incentives to reallocate capital when managers are reluctant to relinquish control and have private information about the productivity of assets under their control. We show that when managers get private benefits from running projects substantial bonuses are...

This appendix presents several robustness experiments, carried on actual and simulated data.

These notes cover: Derivation of the objective function of the Dynastic Problem, Characterization of the competitive equilibrium, Sequential Problem (SP) whose solution corresponds to the competitive equilibrium allocation, Limiting behavior of the equilibrium time paths, Calibration as a...

This appendix provides simulation results for consumption, invest- ment and hours series for the "full model" discussed in the paper. The graphs also plot the relevant data for the US.

Post-retirement, the model in the main text (published in the Review of Economic Dynamics) reduces to the Merton (1969) problem, which has of course an exact solution. Pre-retirement, however, the agent holds an American option, namely, retire now or keep working. Problems involving American...