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We assess the degree to which the policy preferences of female legislators explain the widely observed negative association between women's political representation (known as "women in parliament," or WIP) and corruption. While a broad literature suggests that WIP reduces corruption, there is little consensus on how. Some suggest that the effect is driven by women's psychology—perhaps women are more prosocial or more risk-averse than men, and thus engage in less corruption. Others suggest that the effect is driven by policy preferences: because it serves the interest of their female constituents, women promote social spending, which in turn reduces corruption. We employ a mediation analysis that allows us to test the mediating effect of social spending, and to provide an upper bound for alternative explanations. Our results suggest that social spending explains as much as 69 percent of the effect of WIP on corruption, leaving as little as 31 percent for alternative explanations. These results are robust to concerns about spurious WIP effects, sample composition, and the potential for endogeneity in the link from either WIP or social spending to corruption. We conclude by implicating these findings in broader discussions about the beneficial effects of WIP for governance.

AbstractWe test whether the expansions of children's Medicaid eligibility in the 1980s–1990s resulted in long‐term health benefits in terms of severe chronic conditions. Still relatively rare in the field, we use prospective individual‐level panel data from the Panel Study of Income Dynamics (PSID) along with the higher quality income measures from the Cross‐National Equivalent File (adjusting for taxes, transfers and household size). We observe severe chronic conditions (high blood pressure/heart disease, cancer, diabetes, or lung disease) at ages 30–56 (average age 43.1) for 4670 respondents who were also prospectively observed during childhood (i.e., at ages 0–17). Our analysis exploits within‐region temporal variation in childhood Medicaid eligibility and adjusts for state‐ and individual‐level controls. We uniquely concentrate attention on adjusting for childhood income. A standard deviation greater childhood Medicaid eligibility significantly reduces the probability of severe chronic conditions in adulthood by 0.05 to 0.12 (16%–37.5% reduction from mean 0.32). Across the range of observed childhood Medicaid eligibility, the probability is approximately cut in half. Greater childhood Medicaid eligibility also substantially reduces childhood income disparities in severe chronic conditions. At higher levels of childhood Medicaid eligibility, we find no significant childhood income disparities in adult severe chronic conditions.