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Journal of Political Economy Vol. 131 No. 9 2023

Collective Progress: Dynamics of Exit Waves

Doruk Cetemen1; Can Urgun2; Leeat Yariv3,4

1 City, University of London · 2 Princeton University · 3 National Bureau of Economic Research · 4 Centre for Economic Policy Research

Abstract

We introduce a framework for studying collective search by teams. Discoveries are correlated over time and governed by a Brownian path, where search speed is jointly controlled. Agents individually choose when to cease search and implement their best discovery. We characterize equilibrium and optimal policies. Search speeds are constant within active alliances and depend on complementarities between members. A drawdown stopping boundary governs each agent’s search termination. The consequent exit waves, whereby possibly heterogeneous agents cease search simultaneously, exhibit deterministic sequencing but stochastic timing. We highlight environments with lower than optimal equilibrium speeds and search durations, and different exit waves.

DOI
10.1086/724321
Volume
131
Issue
9
Pages
2402-2450
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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