Title: Causal Inference with Corrupted Data: Measurement Error, Missing Values, Discretization, and Differential Privacy (with Anish Agarwal)

Title: Diversity and Discrimination in the Classroom, joint with Dan Anderberg, Christina Felfe, Helmut Rainer and Thomas Siedler.

Abstract: What makes diversity unifying in some settings but divisive in others? We examine how the mixing of ethnic groups in German schools affects intergroup cooperation and trust. We leverage the quasi-random assignment of students to classrooms within schools to obtain variation in the type of diversity that prevails in a peer group. We combine this with a large-scale, incentivized lab-in-field-experiment based on the investment game, allowing us to assess the in-group bias of native German students in their interactions with fellow natives (in-group) versus immigrants (out-group). We find in-group bias peaks in culturally polarized classrooms, where the native and immigrant groups are both large, but have different religious or language backgrounds. In contrast, in classrooms characterized by non-cultural polarization, fractionalization, or a native supermajority, there are significantly lower levels of own-group favoritism. We find empirical evidence that culturally polarized classrooms foster negative stereotypes about immigrants' trustworthiness and amplify taste-based discrimination, both of which are costly and lead to lower payouts. In contrast, accurate statistical discrimination is ruled out by design in our experiment. Consistent with a simple model, discrimination in culturally polarized classrooms is associated with lower levels of intergroup friendship and larger identity gaps. Taken together, these findings suggest that extra efforts are needed to counteract low levels of inclusivity and trust in culturally polarized environments.

Title: Selling data with private information source

Title: Marriage and the Intergenerational Mobility of Women: Evidence from Marriage Certificates 1850-1920 

Abstract: Due to data limitations, long-run changes in women’s economic mobility are not well understood. Using a set of marriage certificates from Massachusetts over the period of 1850-1920, we link women and men to their childhood and adult census records to obtain a measure of occupational standing across two generations. Intergenerational mobility was higher for women than for men in the earliest 1850-70 cohort. Men’s mobility increases by the 1880-1900 cohort, whereas women’s does not, leading to a convergence. During a period with low married women’s labor force participation, the choice of a partner was crucial for women’s economic status. We find evidence of strong and increasing assortative matching prior to 1880, followed by declines to the 1900-20 cohort. Absent the increase in marital sorting, married women would have experienced the same increases in intergenerational mobility as did men in the sample. Finally, both men and women in the youngest cohort experience an increase in mobility and decreases in marital sorting, consistent with the widespread expansion of educational attainment during the “High School Movement."

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Title:  Regulation by Reputation? Intermediaries, Labor Abuses, and International Migration (with Niharika Singh, University of Notre Dame)

Title: On Block Teaching

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Title : Parents’ Earnings and the Returns to Universal Pre-Kindergarten.

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