I am a Ph.D. student in economics at the University of Bonn. My research field is behavioral and experimental economics. I am interested in moral decision making and decision making under uncertainty. My advisors are Armin Falk and Florian Zimmermann.
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Eliciting Moral Preferences: Theory and Experiment | with Roland Bénabou, Armin Falk and Jean Tirole
We examine to what extent a person's moral preferences can be inferred from observing their choices, for instance via experiments, and in particular, how one should interpret certain behaviors that appear deontologically motivated. Comparing the performance of the direct elicitation (DE) and multiple-price list (MPL) mechanisms, we characterize in each case how (social or self) image motives inflate the extent to which agents behave prosocially. More surprisingly, this signaling bias is shown to depend on the elicitation method, both per se and interacted with the level of visibility: it is greater under DE for low reputation concerns, and greater under MPL when they become high enough. We then test the model's predictions in an experiment in which nearly 700 subjects choose between money for themselves and implementing a 350 € donation that will, in expectation, save one human life. Interacting the elicitation method with the decision's level of visibility and salience, we find the key crossing effect predicted by the model. We also show theoretically that certain "Kantian" postures, turning down all prices in the offered range, easily emerge under MPL when reputation becomes important enough.
Work in Progress
Experimental Evidence on the Relationship between Perceived Ambiguity and Likelihood Insensitivity
Abstract | Manuscript in preparation
What determines likelihood insensitivity in choices under ambiguity? This paper investigates ambiguity perception - the extent to which a decision-maker has difficulties assigning a single probability to each possible event - as a potential determinant, a mechanism that is proposed by multiple prior models. I test this mechanism with an experiment where I separately elicit a measure of likelihood insensitivity from choice behavior and a belief-based measure capturing ambiguity perception. The latter measure is validated using an exogenously induced increase in the degree of ambiguity. I find that increases in ambiguity perception caused by the exogenous increases in ambiguity lead to increases in likelihood insensitivity. Further, ambiguity perception and likelihood insensitivity are significantly positively correlated. Taken together, these findings provide strong support for an ambiguity perception based explanation of likelihood insensitivity.
Perceptions and Realities: Kantians, Utilitarians and Actual Moral Decisions | with Roland Bénabou, Armin Falk and Jean Tirole
Subjective Uncertainty and Intertemporal Choice