From ‘Capital and Ideology’ to ‘Democracy and Evidence’: A Review of Thomas Piketty

Thomas Piketty’s Capital and Ideology (2020) is a major, encyclopaedic and data-driven contribution to the effort of constructing a better human civilization. This review summarises the main argument: a positive thesis that in every society, ideology feeds laws and institutions that create inequality, and inequality then bolsters ideology; a normative thesis that we need a better ideology, including ‘participatory socialism’, to solve our biggest challenges. The review then complements and critiques three central issues in the argument, that (1) the true concentration of economic power, the votes in the economy, is even more extreme than inequality of wealth and income, (2) the legal construction of markets, through property, contract, corporate, or human rights law, can ‘pre-distribute’ income and wealth to a vast extent before tax, and (3) social justice means expanding (not merely correcting or re-distributing) everyone’s opportunity, creative capacity, and human potential, and helps everyone to develop their personality to the fullest. Social justice is an unparalleled force, and is still the best answer to far-right, authoritarian or other failed ideologies, which have escalated inequality and driven climate damage. Perhaps the greatest achievement of Piketty’s work could be to bring economics firmly back to the values in the Universal Declaration of Human Rights.