Prospect Theory in the Heterogeneous Agent Model

0488438 - ÚTIA 2020 RIV DE eng J - Journal Article
Polach, J. - Kukačka, Jiří
Prospect Theory in the Heterogeneous Agent Model.
Journal of Economic Interaction and Coordination. Roč. 14, č. 1 (2019), s. 147-174. ISSN 1860-711X. E-ISSN 1860-7128
R&D Projects: GA ČR(CZ) GBP402/12/G097
Institutional support: RVO:67985556
Keywords : Heterogeneous Agent Model * Prospect Theory * Behavioral finance * Stylized facts
OECD category: Finance
Impact factor: 1.565, year: 2019
Method of publishing: Limited access
http://library.utia.cas.cz/separaty/2018/E/kukacka-0488438.pdf https://link.springer.com/article/10.1007%2Fs11403-018-0219-6

Using the Heterogeneous Agent Model framework, we incorporate an extension based on Prospect Theory into a popular agent-based asset pricing model. This extension covers the phenomenon of loss aversion manifested in risk aversion and asymmetric treatment of gains and losses. Using Monte Carlo methods, we investigate behavior and statistical properties of the extended model and assess how our extension is manifested in different strategies. We show that, on the one hand, the Prospect Theory extension keeps the essential underlying mechanics of the model intact, but on the other hand it considerably changes the model dynamics. Stability of the model is increased and fundamentalists may be able to survive in the market more easily. When only the fundamentalists are loss-averse, other strategies profit more.
Permanent Link: http://hdl.handle.net/11104/0283143