This paper inverts the usual logic of applied optimal income taxation. It starts from the observed distribution of income before and after redistribution and corresponding marginal tax rates. Under a set of simplifying assumptions, it is then possible to recover the social welfare function that would make the observed marginal tax rate schedule optimal. In this framework, the issue of the optim...

In this paper we experimentally document the existence of incomplete preferences in decision making under uncertainty. In a series of incentivized decision tasks subjects have to choose between a risky and an ambiguous prospect. Active choices between prospects can as well be avoided by selecting a fair chance device that eventually assigns one of the two prospects to the decision maker. We obs...

We study an online linear classification problem, in which the data is generated by strategic agents who manipulate their features in an effort to change the classification outcome. In rounds, the learner deploys a classifier, and an adversarially chosen agent arrives, possibly manipulating her features to optimally respond to the learner. The learner has no knowledge of the agents’ utility fun...