Chambers, Christopher P.; Echenique, Federico - In: Theoretical economics : TE ; an open access journal in … 20 (2025) 3, pp. 911-939
Welfare economics relies on access to agents' utility functions: we revisit classical questions in welfare economics, assuming access to data on agents' past choices instead of their utilities. Our main result considers the existence of utilities that render a given allocation Pareto optimal. We...