This paper studies the market and welfare effects of income heterogeneity in monopolistically competitive product … sensitive to price change compared to poorer ones’, a mean-preserving contraction of income distribution entices firms to charge … poorer individuals and, in specific circumstances, on the whole population. In an open economy with free trade, lower income …

We study the optimal tax system when taxpayers earn different kinds of income by supplying different inputs. Imperfect … such as income-shifting. Formalizing the tax schedule as the sum of many one-dimensional schedules, we express optimal … marginal tax rate on any kind of income in terms of sufficient statistics, including new ones for cross-base responses and …

graduation tests, (4) state defined minimums for the total number of courses students must take and pass to get a high school …

language classes in compulsory school on students’ subsequent educational choices in upper secondary school. Using … progression of either low-track female or high-track students, it impedes low-track male students’ transition to upper secondary … education. The effect of foreign language classes on the educational trajectory of low-track male students is particularly …

the effect of proximity to previous Nobelists on winning the Nobel Prize. Conditional on being Nobel-worthy, students and …

are and which students are at risk of dropping out. We develop an early detection system (EDS) using administrative …