We study the effect of ambiguity on the formation of bubbles and on the occurrence of crashes in experimental asset markets à la Smith, Suchanek, and Williams (1988). We extend their framework to an environment where the fundamental value of the asset is ambiguous. We show that, when the...

By now there are hundreds of scientific articles on experimental asset markets. Almost all of these experiments use a short and definite horizon. This may be one of the starkest differences to financial asset markets outside the laboratory, which usually have indefinite and comparatively long...

We administer a survey to thousands of affluent Americans about their personalities and investments. The Big Five personality traits can explain the heterogeneity among investors in their beliefs about the stock market and economy, risk preferences, and social-interaction tendencies. Two...

Maximizing output without taking into consideration the negative externalities generated, including the harm to the mental and physical health of the population creates psychological stress. Focusing on the bellwether indicators of economic performance including working more, generating income,...

Maximizing output without taking into consideration the negative externalities generated, including the harm to the mental and physical health of the population creates psychological stress. Focusing on the bellwether indicators of economic performance including working more, generating income,...

This paper investigates the role, if any, played by the social media platform Reddit, in the events around the GameStop short squeeze in early 2021. In particular, we analyse the impact of discussions on the r/WallStreetBets subreddit on the price dynamics of the American online retailer...

Eye tracking can facilitate understanding irrational decision-making in contexts such as financial risk-taking. For this purpose, we develop an experimental framework in which participants trade a risky asset in a simulated bubble market to maximize individual returns while their eye movements...

Do emotional responses to the spread of an infectious disease affect the quality of economic decision-making? In the context of an episode of heightened public concern about Ebola in the US in October 2014, I document that worrying about the possibility of an epidemic can impair cognitive...

Investors' return expectations are pivotal in stock markets, but the reasoning behind these expectations remains a black box for economists. This paper sheds light on economic agents' mental models - their subjective understanding - of the stock market, drawing on surveys with the US general...