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Working Paper
Aggregate Implications of Deviations from Modigliani-Miller: A Sufficient Statistics Approach
A few sufficient statistics can identify the aggregate effects of distortions to firm investment in a class of general equilibrium models that can accommodate rich general equilibrium effects including endogenous firm entry. This result does not depend on the microfoundation of the distortion; one can generate inferences about aggregate effects that apply for multiple microfoundations or in cases where a fully specified model is difficult to solve. To demonstrate the relevance of themethodology, we use it to quantify the aggregate consequences of costly external equity financing and a ...
Working Paper
The Welfare Effects of Bank Liquidity and Capital Requirements
The stringency of bank liquidity and capital requirements should depend on their social costs and benefits. This paper investigates their welfare effects and quantifies their welfare costs using sufficient statistics. The special role of banks as liquidity providers is embedded in an otherwise standard general equilibrium growth model. Capital and liquidity requirements mitigate moral hazard from deposit insurance, which, if unchecked, can lead to excessive credit and liquidity risk at banks. However, these regulations are also costly because they reduce the ability of banks to create net ...
Working Paper
Designing a Main Street Lending Facility
Banks add value by monitoring borrowers. High funding costs make banks reluctant to lend. A central bank can ease funding by purchasing loans, but cannot distinguish which loans require more or less monitoring, exposing it to adverse selection. A multi-tier loan pricing facility arises as the optimal institutional design setting both the purchase price and banks' risk retention for given loan characteristics. This design dominates uniform (flat) structure for loan purchases, provides the right incentives to banks and achieves maximum lending at lower rates to businesses. Both the multi-tier ...
Working Paper
The Sufficient Statistic Approach: Predicting the Top of the Laffer Curve
We provide a formula for the tax rate at the top of the Laffer curve as a function of three elasticities. Our formula applies to static models and to steady states of dynamic models. One of the elasticities that enters our formula has been estimated in the elasticity of taxable income literature. We apply standard empirical methods from this literature to data produced by reforming the tax system in a model economy. We find that these standard methods underestimate the relevant elasticity in models with endogenous human capital accumulation.
Working Paper
The Real Effects of Monetary Shocks: Evidence from Micro Pricing Moments
This paper evaluates the informativeness of eight micro pricing moments for monetary non-neutrality. Frequency of price changes is the only robustly informative moment. The ratio of kurtosis over frequency is significant only because of frequency, and insignificant when non-pricing moments are included. Non-pricing moments are additionally informative about monetary non-neutrality, indicating potential omitted variable bias and the inability of pricing moments to serve as sufficient statistics. In contrast to existing theoretical work, this ratio has an ambiguous relationship with monetary ...