For generations, debating the expansion or contraction of the American welfare state has produced some of the nation's most heated legislative battles. Attempting social policy reform is both risky and complicated, especially when it involves dealing with powerful vested interests, sharp ideological disagreements, and a nervous public.

The Politics of Policy Change compares and contrasts recent developments in three major federal policy areas in the United States: welfare, Medicare, and Social Security. Daniel Beland and Alex Waddan argue that we should pay close attention to...