Marginal Jobs, Heterogeneous Firms, and Unemployment Flows

Working Paper: NBER ID: w13777

Authors: Michael W.L. Elsby; Ryan Michaels

Abstract: This paper introduces a notion of fir m size into a search and matching model with endogenous job destruction. The outcome is a rich, yet analytically tractable framework that can be used to analyze a broad set of features of both the cross section and the dynamics of the aggregate labor market. In a set of quantitative applications we show that the model can provide a coherent account of a) the salient features of the distributions of employer size, and employment growth across establishments; b) the amplitude and propagation of cyclical fluctuations in flows between employment and unemployment; c) the negative comovement of unemployment and vacancies in the form of the Beveridge curve; and d) the dynamics of the distribution of employer size over the business cycle.

Keywords: Labor Market Dynamics; Firm Size; Unemployment; Job Flows

JEL Codes: E24; E32; J63; J64


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
firm size (L25)employment dynamics (J63)
aggregate productivity (E23)hiring decisions (M51)
hiring decisions (M51)unemployment rates (J64)
unemployment (J64)vacancies (J63)
economic conditions (E66)size distribution of firms (L25)

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