We study the nature of monetary policy in a model where uncertainty can lead to a discrepancy between economic agents' beliefs and true fundamentals. Monetary policy transmits information about fundamentals. The public nature of this information can help agents to coordinate their decisions....

We study a dynamic stochastic general equilibrium model where agents are concerned about model uncertainty regarding climate change. An externality from greenhouse gas emissions adversely affects the economys capital stock. We assume that the mapping from climate change to damages is subject to...

We use mechanism design in order to study efficient arrangements when the ability of agents to perform certain welfare-improving transactions is subject to random and unobservable shocks. We study implementation via a payment system that involves assigning balances to participants and optimally...

We analyze bureaucracy and corruption in a market with decentralized exchange and <93>lemons.<94> Exchange is modelled as a sequence of bilateral, random matches. Agents have private information about the quality of goods they produce and can supplement trade with socially inefficient bribes....</94></93>

We build on our earlier model of money in which bank liabilities circulate as medium of exchange, and investigate the provision of liquidity for a range of central-bank regulations dealing with the potential of bank failure. In our model, banks issue inside money under fractional reserves,...

Under take-it-or-leave-it offers, dynamic equilibria in the discrete time random matching model of money are a "translation" of dynamic equilibria in the standard overlapping generations model. This formalizes earlier conjectures about the equivalence of dynamic behavior in the two models and...

We introduce "lack-of-recall" of past transactions as an alternative assumption to anonymity in a model where trade is centralized. In environments where there is an intertemporal lack-of-double-coincidence of wants problem and lack-of-commitment, lack-of-recall can give rise to monetary...

The authors introduce an element of centralization in a random matching model of money that allows for private liabilities to circulate as media of exchange. Some agents, which the authors identify as banks, are endowed with the technology to issue notes and to record-keep reserves with a...

The authors study the design of efficient intertemporal payment arrangements when the ability of agents to perform certain welfare-improving transactions is subject to random and unobservable shocks. Efficiency is achieved via a payment system that assigns balances to participants, adjusts them...