AI and Perception Biases in Investments: An Experimental Study

68 Pages Posted: 17 Apr 2024 Last revised: 11 Apr 2025

See all articles by Anastassia Fedyk

Anastassia Fedyk

University of California, Berkeley - Haas School of Business

Ali Kakhbod

University of California, Berkeley

Peiyao Li

University of California, Berkeley - Haas School of Business

Ulrike Malmendier

University of California, Berkeley - Department of Economics; University of California, Berkeley - Haas School of Business; National Bureau of Economic Research (NBER); Centre for Economic Policy Research (CEPR); Institute for the Study of Labor (IZA); European Corporate Governance Institute (ECGI)

Date Written: April 8, 2024

Abstract

AI has the potential to broaden access to investment advice. But can it replicate the investment preferences and rationales of investors that have been historically underrepresented? We ask 1,272 human and 1,350 AI respondents to rate stocks, bonds, and cash investments. First, default AI-generated responses overrepresent the preferences of young high-income individuals. However, algorithmic bias disappears with demographically seeded prompts. Second, AI-generated free-form responses closely capture human rationales: risk and return, financial knowledge, and past experiences. Third, AI can help identify where a lack of financial knowledge induces uncertainty about investment, as shown in our textual analysis of transitivity violations.

Keywords: Investment preferences, Large language models, Behavioral biases, Experimental economics, Financial surveys, Generative AI. JEL Classification: C1, G10, G11, G12

JEL Classification: C1, G10, G11, G12.

Suggested Citation

Fedyk, Anastassia and Kakhbod, Ali and Li, Peiyao and Malmendier, Ulrike, AI and Perception Biases in Investments: An Experimental Study (April 8, 2024). Available at SSRN: https://ssrn.com/abstract=4787249 or http://dx.doi.org/10.2139/ssrn.4787249

Anastassia Fedyk

University of California, Berkeley - Haas School of Business ( email )

545 Student Services Building, #1900
2220 Piedmont Avenue
Berkeley, CA 94720
United States

Ali Kakhbod (Contact Author)

University of California, Berkeley ( email )

Haas School of Business
2220 Piedmont Ave
Berkeley, CA 94720
United States

Peiyao Li

University of California, Berkeley - Haas School of Business ( email )

545 Student Services Building, #1900
2220 Piedmont Avenue
Berkeley, CA 94720
United States

Ulrike Malmendier

University of California, Berkeley - Department of Economics ( email )

549 Evans Hall #3880
Berkeley, CA 94720-3880
United States
(510) 642-8724 (Phone)
(510) 642-6615 (Fax)

HOME PAGE: http://www.econ.berkeley.edu/~ulrike/

University of California, Berkeley - Haas School of Business ( email )

545 Student Services Building, #1900
2220 Piedmont Avenue
Berkeley, CA 94720
United States

National Bureau of Economic Research (NBER)

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

Centre for Economic Policy Research (CEPR)

London
United Kingdom

Institute for the Study of Labor (IZA)

P.O. Box 7240
Bonn, D-53072
Germany

HOME PAGE: http://www.iza.org/en/webcontent/personnel/photos/index_html?key=918

European Corporate Governance Institute (ECGI)

c/o the Royal Academies of Belgium
Rue Ducale 1 Hertogsstraat
1000 Brussels
Belgium

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