Why Ethnic Parties Succeed: Patronage and Ethnic Head Counts in India. By Kanchan Chandra. Cambridge: Cambridge University Press, 2004. 368p. $80.00.

In the post-9/11 world where the “clash of civilizations” has moved beyond classroom debates to the public realm, it is refreshing, and challenging, to see a study that does not give ethnicity an easy ride. The title of this book is slightly misleading, though, because even while it concedes that appeals for political support on the basis of ethnic categories based on “race, caste, tribe or religion” (p. 2) are frequently made, sometimes with considerable success, it asserts that such tactics do not always succeed. When they do, it is not necessarily because of their putative appeal to sentiments but, instead, because both ethnic candidates and their supporters, rather than being swayed by appeals to their nonrational selves, are actually driven by sophisticated calculations of expected gain. Their utility calculus takes the size of the ultimate prize as well as the probability of winning it into account when they choose to align themselves with one set of politicians as opposed to another. Kanchan Chandra's parsimonious and general model explains why ethic parties in India, riding on Hindu or, for that matter, Tamil nationalism, succeed in some contexts but not in others.