PAM_438_march17_2011 - Health Information 03/16/2011 The...

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Health Information 03/16/2011 The truth © campaign Background, research design, & findings (Mon.) Discussion (today) Homework #4 due Friday
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Model specification In addition to explanatory variables listed in Table: “Control variables included media market indicator variables, inflation-adjusted state per capita tobacco control expenditures, state-level average cigarette prices, and indicator variables for missing or unspecified race and parental education data.” Other determinants of smoking ?
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Discussion: measurement issues MTF survey limitations Many schools refuse to participate Study can not measure individual exposure, but uses average exposure in the local market as proxy measure Study uses GRPs, not TRPs Teen Rating Points should be better proxy Total accumulated exposure 2000 - 2002 Standard assumption is that ads depreciate
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Discussion: rural confounding “Statistical controls” have limits Markets with low GRPs rural, white, less education All of these associated with more smoking Wittes: “Intuition tells us that such adjustment, in the face of widely disparate and confounded groups, is tantamount to extrapolation. (For example, if high GRPs occur only in cities and low GRPs occur in rural areas,
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This note was uploaded on 04/28/2011 for the course PAM 4380 taught by Professor Kenkel during the Spring '08 term at Cornell University (Engineering School).

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PAM_438_march17_2011 - Health Information 03/16/2011 The...

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