Probabilistic Expectations in Developing Countries

Many decisions are made under uncertainty, and individuals are likely to form subjective expectations about the probabilities of events that are relevant to their decisions. I review here a recent and growing literature that uses probabilistic expectations elicited from survey respondents in developing countries. I first present an illustrative model of one particular decision under uncertainty—the choice of a college—to exemplify the importance of subjective expectations data for identification purposes. I then review existing evidence emphasizing that it is feasible to elicit probabilities from survey respondents in low-literacy settings and describe common patterns of answers. Finally, I describe existing applications, many of which seek to assess how expectations influence behavior, in various domains, including health, education, agricultural production, and migration.