The expectation of a sum of utilities is a core criterion for evaluating policies and social welfare under variable population and social risk. Our contribution is to show that a previously unrecognized combination of weak assumptions yields general versions of this criterion, both in...

Who is most likely to change their risk preferences over the lifecourse? Using German nationally representative survey data and methods to separate age from cohort effects, we estimate the lifecycle patterns in the socioeconomic gradient of self-reported risk preferences. Tolerance to risk drops...

The steady increase in inequality over the past decades has revived a lively debate about what can be considered a fair distribution of income. Public support for the extent of redistribution typically depends on the perceived causes of income inequality, such as differences in effort, luck, or...

In this study we experimentally investigate whether solidarity, which is a crucial base for informal insurance arrangements in developing countries, is sensitive to the extent to which individuals can influence their risk exposure. With slum dwellers of Nairobi our design measures subjects'...

Although different approaches and methods have been used to measure inequality aversion, there remains no consensus about its drivers at the individual level. We conducted an experiment on a sample of more than 1800 first-year undergraduate economics and business students in Uruguay to...

Utilitarianism is the most prominent family of social welfare functions. We present three new axiomatic characterizations of utilitarian (that is, additively separable) social welfare functions in a setting where there is risk over both population size and the welfares of individuals. First, we...

Who is most likely to change their risk preferences over the lifecourse? Using German nationally representative survey data and methods to separate age from cohort effects, we estimate the lifecycle patterns in the socioeconomic gradient of self-reported risk preferences. Tolerance to risk drops...

Negative income shocks can either be the consequence of risky choices or random events. A growing literature analyzes the role of responsibility for neediness for informal financial support of individuals facing negative income shocks based on randomized experiments. In this paper, we show that...

In this paper we provide a new methodology to measure opportunity inequality and to decompose overall inequality in an ethically offensive and an ethically acceptable part. Moreover, we provide some empirical applications of these new evaluation tools: in the first exercise, we compare the...

In this paper we provide a new methodology to measure opportunity inequality and to decompose overall inequality in an "ethically offensive" and an "ethically acceptable" part. Moreover, we provide some empirical applications of these new evaluation tools: in the first exercise, we compare the...