A common assumption in the optimal taxation literature is that the social planner maximizes a welfarist social welfare function with weights decreasing with income. However, high transfer withdrawal rates in many countries imply very low weights for the working poor in practice. We reconcile...

Although microfinance institutions across the world are moving from group lending towards individual lending, this strategic shift is not substantiated by sufficient empirical evidence on the impact of both types of lending on borrowers. We present such evidence from a randomised field...

We calculate the expected distributional effects of the European Emissions Trading System combining industry and household-level data. By combining data on direct CO2 emissions by production sector from the German Environmental Account with the German Input-Output Accounts, we calculate the CO2...