We study economies where houses, in addition to providing utility as shelter, may also facilitate credit transactions, since home equity can be used as collateral. We document there were big increases in home-equity-backed consumption loans coinciding with the start of the house price boom, and...

reneging on obligations.

parameters optimal; for other parameters, strictly positive rates (inflation above the Friedman Rule) are optimal.

This paper generalizes Rubinstein and Wolinsky’s model of middlemen (intermediation) by incorporating production and search costs, plus more general matching and bargaining. This allows us to study many new issues, including entry, efficiency and dynamics. In the benchmark model, equilibrium...

We introduce household production and the production of houses (construction) into a monetary model. Theory predicts inflation, as a tax on market activity, encourages substitution into household production and hence investment in housing. In the model, the stock and appropriately-deflated price...

Coinciding with the start of the housing boom were large increases in home-equity lending and loan-to-equity ratios. We study this in models where housing bears a liquidity premium because it collateralizes loans. Even with fundamentals constant, since liquidity depends on beliefs,...

Many applications of search theory in monetary economics use the Shi-Trejos-Wright model, hereafter STW, while applications in finance use Duffie-Gârleanu-Pederson, hereafter DGP. These approaches have much in common, and both claim to be about liquidity, but the models also differ in a...

The generation and implementation of ideas, or knowledge, is crucial for economic performance. We study this process in a model of endogenous growth with frictions. Productivity increases with knowledge, which advances via innovation, and with the exchange of ideas from those who generate them...

The authors analyze markets where each of n buyers wants to buy one unit and each of m sellers wants to sell one or more units of an indivisible good. Sellers first set prices, then buyers choose which sellers to visit. There are equilibria where each buyer visits sellers at random and faces a...