Solving and Simulating Models with Heterogeneous Agents and Aggregate Uncertainty

Yann Algan*, Olivier Allais, Wouter J. Den Haan, Pontus Rendahl

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review


Although almost nonexistent 15. years ago, there are now numerous papers that analyze models with both aggregate uncertainty and a large number-typically a continuum-of heterogeneous agents. These models make it possible to study whether macroeconomic fluctuations affect different agents differently and whether heterogeneity in turn affects macroeconomic fluctuations. This chapter reviews different algorithms to solve and simulate these models. In addition, it highlights problems with popular accuracy tests and discusses more powerful alternatives.

Original languageEnglish
Title of host publicationHandbook of Computational Economics, Volume 3
EditorsKarl Schmedders, Kenneth L. Judd
Number of pages48
Place of PublicationOxford
Publication date2014
ISBN (Print)9780444529800
Publication statusPublished - 2014
Externally publishedYes


  • Accuracy tests
  • Incomplete markets
  • Numerical solutions
  • Parameterized densities
  • Perturbation methods
  • Projection methods

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