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The 1990 Clean Air Act Amendments stipulated gasoline content requirements for metropolitan areas with air pollution levels above predetermined federal thresholds. The legislation led to exogenous changes in the type of gasoline required for sale across U.S. metropolitan areas. This paper uses a...
Persistent link: https://www.econbiz.de/10009446213
Este documento analiza cómo impacta en el desempeño escolar la reubicación de niños en servicios de cuidado tutelar, tras investigaciones familiares por maltrato infantil. Para estimar el efecto causal de la reubicación, se construye una variable instrumental. Dicha variable es la...
Persistent link: https://www.econbiz.de/10012613022
Summary of Banco de España Working Paper no. 2126
Persistent link: https://www.econbiz.de/10012670004