Intertemporal tradeoffs play a key role in many personal decisions and policy questions. We describe models of intertemporal choice, identify empirical regularities in choice, and pose new questions for research. The focus for intertemporal choice research is no longer whether the exponential...

In most medical decisions probabilities are ambiguous and not objectively known. Empirical evidence suggests that people's preferences are affected by ambiguity. Health economic analyses generally ignore ambiguity preferences and assume that they are the same as preferences under risk. We show...

In this paper, we study two classical saving-insurance problems for the intertemporal version developed by Hayashi and Miao (2011) of the smooth ambiguity model of Klibanoff et al. (2005). These models put risk, ambiguity and time preferences together in a Kreps-Porteus aggregator, and...

This paper re-examines precautionary saving with general Selden/Kreps-Porteus preferences. The conditions existing in the literature are much more complex than in the Expected Utility framework. We obtain a simple and intuitive result on precautionary savings via disentangling time preference...

Influential economic approaches as random utility models assume a monotonic relation between choice frequencies and "strength of preference," in line with widespread evidence from the cognitive sciences, which also document an inverse relation to response times. However, for economic decisions...

Substantial evidence in field, lab and thought experiments in multiple disciplines, shows that decision makers often choose a dominated strategy, which contradicts with current economic theory. To bridge this gap between theory and evidence, first, we propose two alternative axiomatic...

Despite the truthful dominant strategy, participants in strategy-proof mechanisms submit manipulated preferences. In our model, participants dislike rejections and enjoy the confirmation from getting what they declared most desirable. Formally, the payoff from a match decreases in its position...

Preferences over risky alternatives can be elicited by different methods, including direct pairwise choices and willingness-to-accept valuations. The results are frequently at odds, casting doubts on the foundations of economics. We develop a stochastic choice model predicting when...