Working Paper: NBER ID: w28792
Authors: Sebastian Heise; Tommaso Porzio
Abstract: We develop a general equilibrium model of frictional labor reallocation across firms and regions, and use it to quantify the aggregate and distributional effects of spatial frictions that hinder worker mobility across regions in Germany. The model leverages matched employer-employee data to unpack spatial frictions into different types while isolating them from labor market frictions that operate also within region. The estimated model shows sizable spatial frictions between East and West Germany, especially due to the limited ability of workers to obtain job offers from more distant regions. Despite the large real wage gap between East and West of Germany, removing the spatial frictions leads, in equilibrium, to only a small increase in aggregate productivity and it mostly affects the within-region allocation of labor to firms rather than the between-region allocation. However, spatial frictions have large distributional consequences, as their removal drastically reduces the gap in lifetime earnings between East and West Germans.
Keywords: spatial frictions; labor mobility; regional wage disparities; general equilibrium model
JEL Codes: J61; R13
Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.
| Cause | Effect |
|---|---|
| spatial frictions (R12) | aggregate output (E10) |
| removal of spatial frictions (R32) | aggregate productivity (E23) |
| removal of spatial frictions (R32) | within-region allocation of labor (R23) |
| removal of spatial frictions (R32) | between-region allocation of labor (R23) |
| spatial frictions (R12) | lifetime earnings gap (J31) |
| spatial search frictions (R32) | aggregate output (E10) |
| elimination of moving costs (F29) | GDP (E20) |
| removal of spatial frictions (R32) | access to more productive firms (L25) |
| removal of spatial frictions (R32) | low productivity firms attracting workers (J69) |