1. Discussion Tobias J. Klein: „College Education and Wages in the U.K.: Estimating Conditional Average Structural Functions in Nonadditive Models with Binary Endogenous Variables” Johannes Gernandt, ZEW Mannheim Mannheim, 27th October 2006

2. Conclusion, Main Results Estimation for expected wage levels and their dependence on endogenous schooling choice (measured ability, social class, secondary school type, family background) Monetary college rent of 46% (ATE population), ATE untreated > ATE treated Nonseparabilities between the impact of observables and unobserved ability on wages Data Base: Panel of Britain's born between March 3 and 9, 1958

3. Shortcomings of the data set (?) Huge and overlapping confidence intervals (Table 3) – nevertheless, effect (ATE untreated > ATE treated) is interesting Father Effect: “too much” > “some interest” > “very interested” (Table 2) Influence of “missing” is significant, lot of other variables are not (Table 2) Number of observations?

4. „Abitur“ rents in Germany Work in progress: “Distributional Effects of the High School Degree in Germany” GSOEP 1984-2004 Share of persons with „Abitur“ increases from 16 to 25 percent OQTE is significant positive (0.2 to 0.4) QTET statistically does not differ from zero