We consider an exchange economy with time-inconsistent consumers whose preferences are additively separable. When these consumers trade in a sequence of markets, their time-inconsistency may introduce a non-convexity that gives them an incentive to trade lotteries. If there are many consumers,...

We study the decision of when to invest in an indivisible project whose value is perfectly observable but driven by a parameter that is unknown to the decision maker ex ante. This problem is equivalent to an optimal stopping problem for a bivariate Markov process. Using filtering and martingale...

We study how securities and trading mechanisms can be designed to optimally mitigate the adverse impact of market imperfections on liquidity. Asset owners seek to obtain liquidity by selling their claims on future cash-flows, on which they have private information. Our analysis encompasses both...