Hazardous Lending: The Impact of Natural Disasters on Banks'Asset Portfolio

Jaap Bos, Runliang Li, Mark Sanders

Research output: Working paper / PreprintWorking paper

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This paper studies how banks adjust their asset structure in response to changes in loan demand after natural disasters. We show how banks help clients smoothen consumption and support local recovery through their asset diversification strategy. In the empirical part, using a difference-in-difference method, we find that U.S. commercial banks increase real estate lending after disasters and sell government bonds to finance such a disaster-driven demand surge. In the theoretical part of this paper we present a novel multiple-asset dynamic credit rationing model that explains these empirical findings. Using simulations of our model we can then predict and quantify the possible impact of climate change on the asset structure and profitability of banks for different scenarios.
Original languageEnglish
PublisherMaastricht University, Graduate School of Business and Economics
Publication statusPublished - 27 Aug 2018

Publication series

SeriesGSBE Research Memoranda

JEL classifications

  • g21 - "Banks; Depository Institutions; Micro Finance Institutions; Mortgages"
  • q54 - "Climate; Natural Disasters; Global Warming"


  • banks
  • disasters
  • diversification
  • climate change

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