During and after the Great Recession of 2008-09, conventional monetary policy in the United States and many other advanced economies was constrained by the effective lower bound (ELB) on nominal interest rates. Several central banks implemented large-scale asset purchase (LSAP) programs, more...

Now that Congress has passed the Dodd-Frank Wall Street Reform and Consumer Protection Act, regulators promulgating the rules under this new bill must tackle a major problem that the reform bill addresses only indirectly. This is the problem of excessive “leverage” – financing with too...

We study arbitrage opportunities in diverse markets as introduced by R. Fernholz in [Fer99]. By a change of measure technique we are able to generate a variety of diverse markets. The construction is based on an absolutely continuous, but nonequivalent measure change which implies the existence...

This paper develops a micro-founded general equilibrium model of the financial system composed of ultimate borrowers, ultimate lenders and financial intermediaries. The model is used to investigate the impact of uncertainty about the likelihood of governmental bailouts on leverage, interest...

We study monetary policy when private credit markets are incomplete. The macroeconomy we study has a large private credit market, in which participant households use non-state contingent nominal contracts (NSCNC). A second, small group of households only uses cash, supplied by the monetary...

I construct a model of money and credit where financial intermediaries write deposit contracts with economic agents to intermediate credit transactions. A preference shock is private information to a depositor, which is costly for intermediaries to observe. Financial intermediaries create...

The aim of this work is to compare and contrast different ways of modeling financial shocks and financial intermediaries in the Dynamic Stochastic General Equilibrium models (DSGE models) and to discuss the empirical evidence on the importance of modeling financial sector and financial shocks in...

In this study I examine the welfare implications of monetary policy by constructing a novel New Keynesian model that properly accounts for asset pricing facts. I find that the Ramsey optimal monetary policy yields an inflation rate above 3.5% and inflation volatility close to 1.5%. The same...

We present an incomplete markets model to understand the costs and benefits of increasing government debt when an increased demand for safety pushes the natural rate of interest below zero. A higher demand for safe assets causes the ZLB to bind, increasing unemployment. Higher government debt...

This paper assesses the role that monetary policy plays in the decision to default using a General Equilibrium model with collateralized loans, trade in fiat money and production. Long-term nominal loans are backed by collateral, the value of which depends on monetary policy. The decision to...