"Major changes have occurred in the structure of former centrally planned economies, including a sharp rise in the share of services in GDP, employment, and international transactions. However, large differences exist across transition economies with respect to services intensity and services...

"The authors study whether political campaign contributions influence agricultural protection in the United States in the manner suggested by the political economy model of Grossman and Helpman (1994). This is the first attempt to test this model using agricultural data. The authors test the...