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Recent family and twin study findings suggest that ADHD when comorbid with conduct problems may represent a particularly familial and heritable form of ADHD. Although several independent groups have shown association between the DRD4 7 repeat allele and ADHD, others have failed to replicate this finding. Previous TDT analyses of UK and Eire samples had also(More)
We present a model where groups attempt to exert influence on policies using both bribes (plata, Spanish for silver) and the threat of punishment (plomo, Spanish for lead). We then use it to make predictions about the quality of a country's public officials and to understand the role of institutions granting politicians with immunity from legal prosecution.(More)
Part of the difficulty of introducing social economics into the principles course is the perception that social economics is anathema to mainstream economics. 1 As noted by Warren Samuels, however, "neoclassical economics is already a form of social economics" despite its "pretensions of methodological individualism and value-neutrality" [Samuels, p. 2].(More)
  • Ernesto Dal, Bó Pedro, Dal Bó, Rafael Di, Tella, +1 other
  • 2003
We present a model where groups attempt to exert in ‡uence on policies using both bribes (plata, Spanish for silver) and the threat of punishment (plomo, Spanish for lead). We then use it to make predictions about the quality of a country's public o¢ cials and to understand the role of institutions granting politicians with immunity from legal prosecution.(More)
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