Heterogeneous-Agent Models in Asset Pricing: The Dynamic Programming Approach and Finite Difference Method

Hamilton Galindo Gil

The BE Journal of Theoretical Economics2025https://doi.org/10.1515/bejte-2024-0065article
AJG 2ABDC A
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0.37

What the paper says

This paper provides a detailed guide to solving a model characterized by risk-aversion heterogeneity, utilizing the dynamic programming approach in conjunction with the finite difference method. Although this model is characterized by a system of three partial differential equations (PDEs) – two related to the agents’ value functions and one to the risky asset price – it is surprisingly unnecessary to solve the full 3-PDEs system. Solving the 2-PDEs system for the agents’ value functions is sufficient, as, in equilibrium, the risky asset price is a function of these values. This problem is further simplified since each agent’s PDE can be solved independently due to the properties of the value function under constant relative risk aversion (CRRA) preferences. Finally, we demonstrate that applying the finite difference method with the implicit approach and an upwind scheme is straightforward for this type of asset pricing model.

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https://doi.org/https://doi.org/10.1515/bejte-2024-0065

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@article{hamilton2025,
  title        = {{Heterogeneous-Agent Models in Asset Pricing: The Dynamic Programming Approach and Finite Difference Method}},
  author       = {Hamilton Galindo Gil},
  journal      = {The BE Journal of Theoretical Economics},
  year         = {2025},
  doi          = {https://doi.org/https://doi.org/10.1515/bejte-2024-0065},
}

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0.37

Balanced mode · F 0.40 / M 0.15 / V 0.05 / R 0.40

F · citation impact0.16 × 0.4 = 0.06
M · momentum0.53 × 0.15 = 0.08
V · venue signal0.50 × 0.05 = 0.03
R · text relevance †0.50 × 0.4 = 0.20

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