Both investors and borrowers are concerned about liquidity. Investors desire liquidity because they are uncertain about when they will want to eliminate their holding of a financial asset. Borrowers are concerned about liquidity because they are uncertain about their ability to continue to...

We survey theoretical developments in the literature on the limits of arbitrage. This literature investigates how costs faced by arbitrageurs can prevent them from eliminating mispricings and providing liquidity to other investors. Research in this area is currently evolving into a broader...

We examine how liquidity and asset prices are affected by the following market imperfections: asymmetric information, participation costs, transaction costs, leverage constraints, non-competitive behavior and search. Our model has three periods: agents are identical in the first, become...

We show in this paper that bank failures can be contagious. Unlike earlier work where contagion stems from depositor panics or ex ante contractual links between banks, we argue bank failures can shrink the common pool of liquidity, creating or exacerbating aggregate liquidity shortages. This...

Banks can fail either because they are insolvent or because an aggregate shortage of liquidity can render them insolvent. We show that bank failures can themselves cause liquidity shortages. The failure of some banks can then lead to a cascade of failures and a possible total meltdown of the...

We develop a model of financially constrained arbitrage, and use it to study the dynamics of arbitrage capital, liquidity, and asset prices. Arbitrageurs exploit price discrepancies between assets traded in segmented markets, and in doing so provide liquidity to investors. A collateral...