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Working Paper
Credit Ratings, Private Information, and Bank Monitoring Ability
In this paper, we use credit rating data from two large Swedish banks to elicit evidence on banks' loan monitoring ability. For these banks, our tests reveal that banks' internal credit ratings indeed include valuable private information from monitoring, as theory suggests. Banks' private information increases with the size of loans.
Working Paper
Private Information and Optimal Infant Industry Protection
We study infant industry protection using a dynamic model in which the industry's cost is initially higher than that of foreign competitors. The industry can stochastically lower its cost via learning by doing. Whether the industry has transitioned to low cost is private information. We use a mechanism-design approach to induce the industry to reveal its true cost. We show that (i) the optimal protection, measured by infant industry output, declines over time and is less than that under public information, (ii) the optimal protection policy is time consistent under public information but not ...
Working Paper
Computing Equilibria of Stochastic Heterogeneous Agent Models Using Decision Rule Histories
This paper introduces a general method for computing equilibria with heterogeneous agents and aggregate shocks that is particularly suitable for economies with private information. Instead of the cross-sectional distribution of agents across individual states, the method uses as a state variable a vector of spline coefficients describing a long history of past individual decision rules. Applying the computational method to a Mirrlees RBC economy with known analytical solution recovers the solution perfectly well. This test provides considerable confidence on the accuracy of the method.
Working Paper
Optimal Taxes Under Private Information: The Role of the Inflation
We consider an overlapping generation framework with search and private information to study optimal taxation. Agents sequentially trade in markets that are characterized by different frictions and trading protocols. In frictional decentralized markets, agents receive shocks that determine if they are going to be consumers or producers. Shocks are private information. Mechanism design is used to solve for the constrained optimal allocation. We then study whether a government can replicate the constrained optimal allocation with an array of policy instruments including fiat money. We show that ...
Working Paper
Enduring Relationships in an Economy with Capital and Private Information
We study efficient risk sharing in a model where agents operate linear production technologies with private information about idiosyncratic productivity. Capital is the sole factor of production, and accumulable. We establish a time-invariant, one-to-one mapping between the capital allocated to an agent and his lifetime utility entitlement. The mapping implies properties that are distinct from those in models with private information about endowments. In contrast to the latter, the value of the risk-sharing arrangement in our model always remains above the autarky value. There is no need for ...
Working Paper
Aggregate Consequences of Dynamic Credit Relationships
Which financial frictions matter in the aggregate? This paper presents a general equilibrium model in which entrepreneurs finance a firm with a long-term contract. The contract is constrained efficient because firm revenue is costly to monitor and entrepreneurs may default. The cost of monitoring firms and the entrepreneurs' outside options determine the significance of moral hazard relative to limited enforcement for financial contracting. Calibrating the model to the U.S. economy, I find that the relative welfare loss from financial frictions is about 5 percent in terms of aggregate ...
Working Paper
The Effect of Large Investors on Asset Quality: Evidence from Subprime Mortgage Securities
The government-sponsored enterprises (GSEs) Fannie Mae and Freddie Mac?the dominant investors in subprime mortgage-backed securities before the 2008 crisis?substantively affected collateral composition in this market. Mortgages included in securities designed for the GSEs performed better than those backing other securities in the same deals, holding observable risk constant. Consistent with the transmission of private information, these effects are concentrated in low-documentation loans and for issuers that were highly dependent on the GSEs and were corporate affiliates of the mortgage ...
Discussion Paper
Are All CLOs Equal?
Asset securitization is an important source of corporate funding in capital markets. Collateralized loan obligations (CLOs) are securitization structures that allow syndicated bank lenders and bond underwriters to repackage business loans and sell them to investors as securities. CLOs are actively overseen by a collateral manager that has the responsibility to trade loans in the portfolio to benefit from gains and mitigate losses from credit exposures. Because CLOs include a diverse portfolio of loans, a single firm that commingles its lending role with the collateral management role can reap ...
Working Paper
Order Flow and Exchange Rate Dynamics in Electronic Brokerage System Data
We analyze the association between order flow and exchange rates using a new dataset representing a majority of global interdealer transactions in the two most-traded currency pairs. The data consist of six years (1999-2004) of order flow and exchange rate data for the euro-dollar and dollar-yen currency pairs at the one-minute frequency from EBS, the electronic broking system that now dominates interdealer spot trading in these currency pairs. This long span of high-frequency data allows us to gain new insights about the joint behavior of these series. We first confirm the presence of a ...
Working Paper
Private Information and Optimal Infant Industry Protection
We study infant industry protection using a dynamic model in which the industry's cost is initially higher than that of foreign competitors. The industry can stochastically lower its cost via learning by doing. Whether the industry has transitioned to low cost is private information. Using a mechanism-design approach, we solve for the optimal protection policy that induces the industry to reveal its true cost. We show that (i) the optimal protection, measured by infant industry output, declines over time and is less than that under public information, (ii) the optimal protection policy is ...