Despite ample evidence of ambiguity preferences in individual decision making, experimental studies of ambiguity effects in financial markets are scarce and inconclusive. Although a number of theoretical studies explain empirical puzzles in finance with ambiguity preferences, it is not a given...

We introduce the speculation elicitation task (SET) to measure speculative tendencies of individuals. The resulting SET-score allows us to investigate the role of individual speculative behavior on experimental asset market bubbles. The experimental results show that overpricing in asset markets...

Abstract Popular models for decision making under ambiguity assume that people use not one but multiple priors. This paper is a first attempt to experimentally elicit multiple priors. In an ambiguous scenario with two underlying states we measure a subject’s single prior, her other potential...

In our sample of 1,937 US mergers (1995 to 2011), 8.4 percent of all targets received oers with negative premiums where the initial bid undercuts the pre-announcement market price. We theoretically show that target overvaluation, market liquidity and `hidden earnouts', where target shareholders...

Despite intensive research there is no clear evidence for a link between lottery risk preferences and risk involved in trusting others. We argue that this is partially due to a misalignment of the underlying sources of risk. Trusting is giving up control to a human source of risk while lottery...

In standard models of ambiguity, the evaluation of an ambiguous asset, as of a risky asset, is considered as an independent process. In this process only information directly pertaining to the ambiguous asset is used. These models face significant challenges from the finding that ambiguity...