positions that require small reallocations. In such circumstances, welfare can increase if the government steps in, purchases private assets on its own account, and resells them when the economy recovers.

We study the dynamics of dealers' inventories during an asset market crash, described as a temporary, negative shock to outside investors' aggregate asset demand. We consider a class of dynamic market settings where trading between dealers and outside investors is subject to delays and requires...

This paper studies the long-run effects of anticipated inflation on output and welfare within a search-theoretic framework. We allow money-holders to choose the intensities with which they search for trading partners, so the frequency of trades is endogenous. We consider the standard pricing...

I formulate a search-based asset-pricing model where equity shares and fiat money can be used as means of payment. I characterize a family of optimal stochastic monetary policies. Every policy in this family implements Friedman's prescription of zero nominal interest rates. Under an optimal...

It is folklore among monetary theorists that, under laissez faire, absent ad-hoc assumptions that favor money over bonds, there do not exist equilibria in which government-issued fiat money coexists with nominal risk-free, interest-bearing government bonds with similar physical characteristics....

We develop a search model of the federal funds market and show that, at each point along the trading session, rates are increasing in the penalty for reserve deficiencies, decreasing in the borrower's bargaining power, and when there are more (less) lenders than borrowers, also decreasing...

We develop a model of the market for federal funds that accounts for the two distinctive features of this market: banks have to search for a suitable counterparty, and once they have met, both parties negotiate the size of the loan and the repayment. The theory is used to answer a number of...

We develop a model of monetary exchange in over-the-counter (OTC) markets and use it to study the effects of inflation on asset prices, as well as on standard measures of financial liquidity, such as the size of bid-ask spreads, trade volume, and the incentives of dealers to supply immediacy,...

We develop a model of gross job and worker flows and use it to study how the wages and employment status of individual workers evolve over time and how they are affected by aggregate labor market conditions. We also examine the effects that labor market institutions and public policy have on the...