Central banks

FEDS Paper: Cyclical Fluctuations, Financial Frictions, and Productivity Differences across Firms

Luca Guerrieri, Jinill Kim, and Arsenii MishinWithin narrowly defined industries, the most productive firms produce far more than the least productive from the same inputs, and this dispersion widens in downturns. We build a tractable representative-agent model in which financial frictions—adverse selection and moral hazard—make firms sort endogenously into lenders, strategic defaulters, and producers.

FEDS Paper: Sequence-Space Jacobians of Life-Cycle Models

Bence Bardóczy, Akshay Shanker, and Mateo Velásquez-GiraldoThe sequence-space Jacobian (SSJ) method of Auclert et al. (2021a) has made heterogeneous-agent models far easier to solve, fueling an explosion of applications. But even SSJ strains against capacity constraints when state spaces grow very large, as in economies with overlapping generations of heterogeneous agents (HA-OLG).

FEDS Paper: An Evaluation of Difference-in-Differences Methods Using Placebo Event Studies

John Coglianese and Jade A. FangResearchers are faced with the choice of which of the many recently developed difference-in-differences methods to use in practice. To assess these estimators' relative performance for single-unit event studies, we conduct 134,000+ state-level placebo event studies across 13 estimators. We find that no single method dominates.

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