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Structural Interventions In Networks

Author

Listed:
  • Yang Sun
  • Wei Zhao
  • Junjie Zhou

Abstract

Two types of interventions are commonly implemented in networks: characteristics interventions, which influence individuals' intrinsic incentives, and structural interventions, which target the social links among individuals. In this article, we provide a general framework to evaluate the distinct equilibrium effects of both types of interventions. We show that any structural intervention is outcome‐equivalent to an endogenously determined characteristics intervention. We present a wide range of applications of our theory, including evaluating a potential new link in a community, identifying the most wanted criminal(s) in delinquent networks, and determining whether a structural intervention improves certain welfare measures.

Suggested Citation

  • Yang Sun & Wei Zhao & Junjie Zhou, 2023. "Structural Interventions In Networks," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 64(4), pages 1533-1563, November.
    • Handle: RePEc:wly:iecrev:v:64:y:2023:i:4:p:1533-1563
    DOI: 10.1111/iere.12639
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