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Working Paper
Money, interest rates, and exchange rates with endogenously segmented asset markets
This paper analyzes the effects of money injections on interest rates and exchange rates in a model in which agents must pay a Baumol-Tobin style fixed cost to exchange bonds and money. Asset markets are endogenously segmented because this fixed cost leads agents to trade bonds and money only infrequently. When the government injects money through an open market operation, only those agents that are currently trading absorb these injections. Through their impact on these agents? consumption, these money injections affect real interest rates and real exchange rates. We show that the model ...
Report
Time-varying risk, interest rates, and exchange rates in general equilibrium
Under mild assumptions, the data indicate that fluctuations in nominal interest rate differentials across currencies are primarily fluctuations in time-varying risk. This finding is an immediate implication of the fact that exchange rates are roughly random walks. If most fluctuations in interest differentials are thought to be driven by monetary policy, then the data call for a theory which explains how changes in monetary policy change risk. Here we propose such a theory based on a general equilibrium monetary model with an endogenous source of risk variation - a variable degree of asset ...
Working Paper
Search, self-insurance and job-security provisions
We construct a general equilibrium model to evaluate the quantitative effects of severance payments in the presence of contracting and reallocational frictions. Key elements of the model are: 1) establishment level dynamics, 2) imperfect insurance markets, and 3) variable search decisions. Contrary to previous studies that analyzed severance payments in frictionless environments, we find that severance payments reduce unemployment, produce negative insurance effects and improve levels.
Working Paper
Quantitative asset pricing implications of endogenous solvency constraints
The authors study the asset pricing implications of an economy where solvency constraints are determined to efficiently deter agents from defaulting. The authors present a simple example for which efficient allocations and all equilibrium elements are characterized analytically. The main model produces large equity premia and risk premia for long-term bonds with low risk aversion and a plausibly calibrated income process. The authors characterize the deviations from independence of aggregate and individual income uncertainty that produce equity and term premia.
Report
The time consistency of monetary and fiscal policies
We show that optimal monetary and fiscal policies are time consistent for a class of economies often used in applied work, economies appealing because they are consistent with the growth facts. We establish our results in two steps. We first show that for this class of economies, the Friedman rule of setting nominal interest rates to zero is optimal under commitment. We then show that optimal policies are time consistent if the Friedman rule is optimal. For our benchmark economy in which the time consistency problem is most severe, the converse also holds: if optimal policies are time ...
Report
The Risk of Becoming Risk Averse: A Model of Asset Pricing and Trade Volumes
We develop a new general equilibrium model of asset pricing and asset trading volume in which agents? motivations to trade arise due to uninsurable idiosyncratic shocks to agents? risk tolerance. In response to these shocks, agents trade to rebalance their portfolios between risky and riskless assets. We study a positive question ? When does trade volume become a pricing factor? ? and a normative question ? What is the impact of Tobin taxes on asset trading on welfare? In our model, economies in which marketwide risk tolerance is negatively correlated with trade volume have a higher risk ...
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Sluggish responses of prices and inflation to monetary shocks in an inventory model of money demand
We examine the responses of prices and inflation to monetary shocks in an inventory-theoretic model of money demand. We show that the price level responds sluggishly to an exogenous increase in the money stock because the dynamics of households' money inventories leads to a partially offsetting endogenous reduction in velocity. We also show that inflation responds sluggishly to an exogenous increase in the nominal interest rate because changes in monetary policy affect the real interest rate. In a quantitative example, we show that this nominal sluggishness is substantial and persistent if ...
Report
Money, interest rates, and exchange rates with endogenously segmented markets
This paper analyzes the effects of money injections on interest rates and exchange rates in a model in which agents must pay a Baumol-Tobin style fixed cost to exchange bonds and money. Asset markets are endogenously segmented because this fixed cost leads agents to trade bonds and money only infrequently. When the government injects money through an open market operation, only those agents that are currently trading absorb these injections. Through their impact on these agents? consumption, these money injections affect real interest rates and real exchange rates. We show that the model ...
Working Paper
If exchange rates are random walks then almost everything we say about monetary policy is wrong
The key question asked by standard monetary models used for policy analysis is how do changes in short term interest rates affect the economy. All of the standard models imply that such changes in interest rates affect the economy by altering the conditional means of the macroeconomic aggregates and have no effect on the conditional variances of these aggregates. We argue that the data on exchange rates imply nearly the opposite: fluctuations in interest rates are associated with nearly one-for-one changes in conditional variances and nearly no changes in conditional means. In this sense ...