Why are there so few breweries in the South?

Stephan F. Gohmann has a paper on this topic, here goes:

Most southern states have fewer breweries per population than the rest of the country. This paper examines why. The main outcome is that in the South, the number of breweries is negatively associated with higher campaign contributions from big breweries, the number of beer distributors per capita, and the Southern Baptist adherence rate. In the non-South, these associations are insignificant or positive. The limited number of breweries in the South follows the idea of bootleggers and Baptists where those who gain economically from limited competition—large breweries and distributors—side with groups morally opposed to alcohol to keep breweries out.

The pointer is from the excellent Kevin Lewis.