This review considers two explanations for behavioral decision-making in reference to the certainty and framing effects. The findings from various paradigms such as a single questionnaire, gambles with repetition, and gambles guided by feedback are explained either by prospect theory or by...

Prospect theory (PT) is the dominant descriptive theory of decision making under risk today. For the modeling of choices, PT relies on a psychologically founded separation of risk attitudes into attitudes towards outcomes, captured in a value function; and attitudes towards probabilities,...

Based on unique panel data from a five-wave internet survey in Japan, we show how the coronavirus disease 2019 pandemic affected people’s prospect-theory risk preferences, especially in the loss domain. The panel analysis indicates that with the spread of the pandemic, diminishing sensitivity...