The paper shows how a cash-in-advance model of money demand can be written in a way that combines a simple, yet empirically defensible, money demand equation with tractability in asset pricing. Return premia are determined as in the standard barter exchange model, except that a short-term...

We develop and test a model of intraday price formation based on an explicit description of a representative market maker whose beliefs evolve according to Bayes’ rule. We derive an estimating equation where the weight the market maker places on the order flow as an information signal can be...

Economists have often had a bad habit of preferring problems that were tractable to problems that were important. Some problems are both tractable and important, and so they are heavily studied and properly so. Some are tractable but unimportant, and they are often studied to an appalling...