Browsing by Author "Díaz, Juan"
Now showing items 1-4 of 4
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Peña Sotomayor, Benjamín (Universidad de Chile, 2023)This paper presents a new approach to the ecological inference problem, particularly to estimating voter transition matrices between two elections. Our estimators choose the points that most closely conform to constraints ...
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Fuentes, Edwar; Báez, María E.; Díaz, Juan (2009)An effective extraction method was devised for the determination of organophosphorus pesticides (OPPs) in olive and avocado oil samples, using atmospheric pressure microwave-assisted liquid-liquid extraction (APMAE) and ...
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Fuentes, Edwar; Báez, María E.; Díaz, Juan (2010)Dimethoate, diazinon, parathion methyl, pirimiphos methyl, malathion, fenthion, chlorpyriphos, methidathion and azinphos methyl were determined in 71 olive oil samples produced in Chile from different varieties of olives ...
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Díaz, Juan; Grau Veloso, Nicolás; Reyes, Tatiana; Rivera Cayupi, Jorge Enrique (Elsevier, 2021)This paper studies the causal effect of grade retention in primary school on juvenile crime in Chile. Implementing a fuzzy regression discontinuity design, we find that repeating an early grade in primary school decreases ...