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Tell me who you hang out with: Classroom peer effects on psychoactive substances consumption

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Autores
Salamanca Malagón, Carlos Arturo

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Fecha
2015-04-07

Directores
De la Mata, María Dolores
Coleff, Joaquín

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Editor
Universidad del Rosario

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Resumen
Abstract
I look for classroom peer effects for psychoactive substance consumption among Colombian high school students and attempt to identify channels that rationalize for these effects. To do so, I use data for Colombian schools from 2011. I identify peer effects using household consumption behavior to instrument average classroom consumption. I find that an increase of 10% in the proportion of classroom users of alcohol, cannabis, and cocaine increases the probability of students to use alcohol, cannabis, and cocaine in 3.14%, 4.29%, and 2.38% respectively. I find no significant effect on cigarette smoking for the full sample but after exploring heterogeneous effects I find suggestive evidence that the effect is positive in some grades. I find some evidence that indicate that peer effects on alcohol, cannabis, and cocaine consumption operate through risk perception and easiness of access to psychoactive substances, meaning that the increase of likelihood of consumption could be explained because it is easier to access to drugs for students that interact with consumers or because a decrease in the risk students perceive of consuming these substances. Finally, through the use of a SUR and a 3SLS estimator I find strong correlations between smoking cigarettes and consuming cannabis (55 %), and cocaine (60 %).
Palabras clave
Peer effects , Risky behaviors
Keywords
Peer effects , RIsky Behaviors
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