Diagnostic Expectations and Credit Cycles

Diagnostic Expectations and Credit Cycles

  • PEDRO BORDALO
  • NICOLA GENNAIOLI
  • ANDREI SHLEIFER

Article first published online: 12th October 2017 DOI: 10.1111/jofi.12586

Abstract


We present a model of credit cycles arising from diagnostic expectations – a belief formation mechanism based on Kahneman and Tversky's (1972) representativeness heuristic. Diagnostic expectations overweight future outcomes that become more likely in light of incoming data. The expectations formation rule is forward‐looking and depends on the underlying stochastic process, and thus is immune to the Lucas critique. Diagnostic expectations reconcile extrapolation and neglect of risk in a unified framework. In our model, credit spreads are excessively volatile, overreact to news, and are subject to predictable reversals. These dynamics can account for several features of credit cycles and macroeconomic volatility.

Sign in to access the full article.

Are you an Author?


Please read our submission requirements and find out how to submit your paper to the Journal of Finance

Submit a paper