The public often imagines corporations as self-contained actors that provide a set of goods and services to consumers. Underpinning this image have been ideas of ownership, rights to capital and intellectual property, and corporate responsibility to stakeholders including consumers, workers, and shareholders. But what if almost everything we are told about the essence of the firm is wrong? So writes Sir John Kay, a British economist, corporate director, and longstanding fellow of St John’s College (Oxford) in his new book, The Corporation in the 21st Century. The book revolves around contrasts between historical conceptions of corporations, capitalism, and contemporary practices. Kay writes, “A central thesis of [this] book is that business has evolved, but the language that is widely used to describe business has not.” In the 19th and 20th centuries, firms could be defined in terms of their control over material forms of productive capital (factories, steel foundries, railways, etc.) Socioeconomic critiques of capitalism, most prominently from Karl Marx, often centered on firms’ control of the means of production. Kay contends that firms today access productive capital as a service. For example, Amazon does not own its warehouses but rents them from another firm. Kay writes that today’s corporations and capitalism “[have] very little to do with ‘capital’ and nothing whatsoever to do with any struggle between capitalists and workers to control the means of production.” Kay joins Luigi and Bethany to discuss the implications of this evolution in firms’ relation to capital: Why is it important to capitalism that its biggest firms no longer own their means of production? Why does the language used to describe this matter? What do Apple's manufacturing facilities, Amazon's warehouses, and TikTok's algorithms tell us about our notions of business ownership? How have these changes to capitalism redefined the struggle between the owners of capital, managers, workers, and consumers? In the process, Kay, Luigi, and Bethany explore the failures of capitalism and imagine what could and should be the purpose of the 21st-century corporation