The Depression transformed the American political and economic landscape. It produced a major political realignment, creating a coalition of big-city ethnics, African Americans, and Southern Democrats committed, to varying degrees, to interventionist government. It strengthened the federal presence in American life, spawning such innovations as national old-age pensions, unemployment compensation, aid to dependent children, public housing, federally-subsidized school lunches, insured bank depositions, the minimum wage, and stock market regulation. It fundamentally altered labor relations, producing a revived labor movement and a national labor policy protective of collective bargaining. It also transformed the farm economy by introducing federal price supports.