We study equilibrium wage and employment dynamics in a class of popular search models with wage posting, in the presence of aggregate productivity shocks. Firms offer and commit to (Markov) contracts, which specify a wage contingent on all payoff-relevant states, but must pay equally all of...

Workers face a trade-off between macroeconomic and individual incentives to work in different occupations/industries; namely, between search frictions and personal comparative advantages. Workers endowed with heterogeneous multi-dimensional skills search for jobs that require different skill...

What determines which assets are used in transactions? We develop a framework where the extent to which assets are recognizable determines the extent to which they are acceptable in exchange--i.e. it determines their liquidity. Recognizability and liquidity are endogenized by allowing agents to...

Many individuals simultaneously have significant credit card debt and money in the bank. The "credit card debt puzzle "is as follows: given high interest rates on credit cards and low rates on bank accounts, why not pay down debt? While some economists go to elaborate lengths to explain this, we...

We develop a model where: (i) banks take deposits and make investments; (ii) their liabilities facilitate third-party transactions. Other models have (i) or (ii), not both, although we argue they are intimately connected: we show that they both emerge from limited commitment. We describe an...

Many individuals simultaneously have significant credit card debt and money in the bank. The credit card debt puzzle is as follows: given high interest rates on credit cards and low rates on bank accounts, why not pay down debt? While some economists go to elaborate lengths to explain this, we...

What determines which assets are used in transactions? We develop a framework where the extent to which assets are recognizable determines the extent to which they are acceptable in exchange--i.e. it determines their liquidity. Recognizability and liquidity are endogenized by allowing agents to...