Although it has a durable institutional shape, the operation of capitalism takes different forms across space and time with varying distributive effects. This article contributes to a growing literature considering the successive forms taken by capitalism in the developed democracies since World War II. It develops a distinctive conception of these forms as “growth regimes” that are mutually constituted by the core practices of firms and reinforcing public policies specific to each historical era. The movement of firm practices and government policies is then examined with a view to identifying the growth regimes of three postwar eras of modernization, liberalization, and knowledge-based growth.