Porter’s “five forces framework” has been the definitive approach to business strategy for decades and is still taught in every business school in the world. His theory of “shared value” has led to a re-evaluation of the role and expectations of capitalism. Porter has devised strategy concepts and economic theory to tackle problems such as market competition, the environment, health care, and economic development. More recently he has demonstrated how new, smart technology will transform competition, with profound implications for society. His 2020 book, The Politics Industry (with Katherine M Gehl), examines America’s dysfunctional political system and identifies concrete action steps to fix it.