Evaluating Marginal Policy Changes and the Average Effect of Treatment for Individuals at the Margin
Pedro Carneiro (),
James Heckman and
Edward Vytlacil ()
No 4324, IZA Discussion Papers from Institute of Labor Economics (IZA)
This paper develops methods for evaluating marginal policy changes. We characterize how the effects of marginal policy changes depend on the direction of the policy change, and show that marginal policy effects are fundamentally easier to identify and to estimate than conventional treatment parameters. We develop the connection between marginal policy effects and the average effect of treatment for persons on the margin of indifference between participation in treatment and nonparticipation, and use this connection to analyze both parameters. We apply our analysis to estimate the effect of marginal changes in tuition on the return to going to college.
Keywords: marginal policy relevant treatment effect; effects of marginal policy changes; marginal treatment effect; average marginal treatment effect (search for similar items in EconPapers)
JEL-codes: C14 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-mic
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Published in: Econometrica, 2010, 78 (1), 377-394
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Journal Article: Evaluating Marginal Policy Changes and the Average Effect of Treatment for Individuals at the Margin (2010)
Working Paper: Evaluating marginal policy changes and the average effect of treatment for individuals at the margin (2009)
Working Paper: Evaluating Marginal Policy Changes and the Average Effect of Treatment for Individuals at the Margin (2009)
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