I review evidence that individuals associate themselves—or identify—with groups in two
fundamental ways: ingroup bias and conformity to group norms. The evidence spans many …

Among political scientists, not only is it uncontroversial to say that judges seek to etch their
political values into law; it would be near heresy to suggest otherwise. And yet this article …

Triple difference has become a widely used estimator in empirical work. A close reading of
articles in top economics journals reveals that the use of the estimator to a large extent rests …

This paper provides new evidence on gender bias in teaching evaluations. We exploit a
quasi-experimental dataset of 19,952 student evaluations of university faculty in a context …

Abstract For 40 years, the Tuskegee Study of Untreated Syphilis in the Negro Male passively
monitored hundreds of adult black men with syphilis despite the availability of effective …

Employing the universe of juvenile court decisions in a US state between 1996 and 2012,
we analyze the effects of emotional shocks associated with unexpected outcomes of football …

A body of literature suggests that ethnic heterogeneity limits economic growth. This article
provides microeconometric evidence on the direct effect of ethnic divisions on productivity. In …

INFLUENCE Page 1 Influence – Page 1 INFLUENCE The Psychology of Persuasion ROBERT
CIALDINI ROBERT CIALDINI is professor emeritus of psychology and marketing at Arizona …

Why are politicians more likely to advance the interests of those of their race? I present a
field experiment demonstrating that black politicians are more intrinsically motivated to …

This paper examines whether propaganda broadcast over radio helped to change
interethnic attitudes in postgenocide Rwanda. We exploit variation in exposure to the …