The rebranding of economics as a science introduced a separation between politics and economy unthinkable to the political economy that preceded it, and this has coloured the reception of value theory since. The intellectual historian Philip Mirowski, whose work we return to throughout this book, acerbically observes that economists presume an impossible ability to model the reality of economic life from a safe scientific distance, but are themselves implicated in the ‘cultural movements of their time or the metaphors used to rationalize the physical and social worlds’.3 As Marx captured, even the most seemingly objective ideas about society are themselves part and parcel of that society and its reproduction.
In this sense, value theory is no mere academic exercise. The ‘objective’ theories of value that reigned supreme until the late nineteenth century stressed labour’s role in production, and policed a boundary between productive and unproductive sectors of the economy that had real impact on decisions made about investment, policy and income distribution, as well as the politics of social division in ascendant capitalist societies.4 Later, ‘subjective’ theories of value in neoclassical economics centred on preferences, including those of workers in choosing labour over leisure depending on the right incentives. Whilst freeing value theory from ‘productivist’ principles centring solely on the sphere of production to capture better the relational character of value in the sphere of consumption, valid substantialist insights, which highlight the role of the employment relationship in the constitution of value, were cast aside. The persuasiveness of subjective theories of value was aided by the claims to scientific status inherent in neoclassical economics. One of the great misfortunes of subjective theories of value, Mariana Mazzucato notes, is how:
In the intellectual world, economists wanted to make their discipline seem ‘scientific’ – more like physics and less like sociology – with the result that they dispensed with its earlier political and social connotations … while economics students used to get a rich and varied education in the idea of value, learning what different schools of economic thought had to say about it, today they are taught only that value is determined by the dynamics of price, due to scarcity and preferences.5
There is, of course, some sense in this schooling, insofar as these ideas, true or not, really do structure the way things are valued – or at least how value is calculated – in capitalist society. Marginalist utility theory still structures how governments govern, investors invest and businesses do business.6 In this way, theories of value have a performative effect and one might just as well learn to use the master’s tools as any others. Nonetheless, the essence of a critical method is to think through and against the grain of the way things are to create the potential of an alternative. However much neoclassical economics captures or sculpts the reality of economic life in contemporary capitalism, it is insufficient to simply stop there. It is the contention of this book that, in order to do this, a leap must be made from economic to social theories of value.
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The problem of value, as Robert Heilbroner puts it, represents ‘the effort to tie the surface phenomena of economic life to some inner structure or order’.7 Aristotle inaugurated the study of this problematic, inquiring after how the ‘equalization of unlike objects as commodities … requires an arbitrary and conventional means of equalization: in other words, a notion of value’.8 In the modern age, meanwhile, political economy confronted the problem of value by seeking ‘the basis of just price in a non-absolute world’, rapidly freeing itself from royal or divine determination.9 We can follow Heilbroner in broadly identifying ‘five distinct attempts to unravel the value problematic’: substantialism, the cost-of-production approach, Marx’s theory of value, utility theory and the normative theory of value. These map roughly onto Mirowski’s demarcation between conservation or substance theories of value, comprising substantialism and cost of production; field theories of value, which span Marx and utility theory; and the social theory of value, of which Heilbroner seems to be speaking too in his delineation of the ‘normative’ institutionalist approach to value.10 This book broadly tracks this typology, covering each of these strands in turn, as well as some others along the way.
Chapter 1, ‘Value as Substance’, considers theories of value that posit a conserved substance in the commodity itself, typically put there by labour. This idea develops through so-called ‘balance of trade’ mercantilism based on trade and competition between nations, which vied with physiocratic accounts of the productive centrality of agriculture to nascent capitalist economies. It blossoms in classical political economy and its focus on the surplus, before reaching its climax in the critique of political economy by Marx, who moved beyond market exchange to confront the classed dynamics of the workplace in determining the production and distribution of value.
Chapter 2, ‘Value as Relation’, considers the development of so-called ‘field’ theories of value that situate value not in any thing or activity but rather in the money-mediated relationship between them. First, we survey the contribution of ‘free trade’ mercantilists and the work of Samuel Bailey, before using the so-called ‘new reading’ of Marx to demonstrate how the full development of the latter’s value theory breaks with substantialist accounts of the production of value, stressing instead the sphere of circulation and the moment of monetary exchange in ascribing value to products of labour. This places Marx on the path to a proto-marginalist ‘subjective’ theory of value – a historically decisive break with the ‘objective’ theories of value associated with prior political economy.
Chapter 3, ‘Value as Utility’, examines the development of the relational ‘field’ theory of value marginalist utility theory. We first explore its foundations and political imperatives through the work of Bernoulli and Bentham, before a discussion of its central unit of analysis, the ‘util’. Drawing on critical reconstructions in the work of institutionalists such as Mirowski, we identify utility theory’s incomplete break with a concept of substance. Finally, we explore, through a consideration of the so-called ‘Weber–Fechner’ debate, issues in the marginalist tradition around the measurability of marginal utility. Whilst utility theory has some advantages, moving from a production-based standpoint to include other moments of consumption and exchange within the determination of value, its individualized and asocial view of capitalist society leaves significant conceptual gaps with problematic real-life consequences.
Chapter 4, ‘Value and Institutions’, surveys how ‘social’ and ‘normative’ theories of value plug gaps inherent in other approaches to value. We first explore the ‘normative’ theory of value inaugurated with Aristotle, before charting the development of the ‘social’ theory associated with institutionalists like Thorstein Veblen and John Commons, before moving on to the more recent ‘power’ theory of value promoted in the work of Jonathan Nitzan and Shimshon Bichler. We then discuss the increasingly significant ‘Sociology of Valuation and Evaluation’ – specifically, how social and political processes of valuation are theorized in the work of Arjun Appadurai, and the ‘valuation studies’ that develop from his work an analysis of the ‘regimes of value’ enacted in so-called ‘market devices’, as well as the ‘cultural economy’ approach influenced by Michel Callon and Pierre Bourdieu. Continuing a focus on the ‘performativity’ of both value and theories of it, we use the work of Mazzucato to explore the past and present politics of productiveness and unproductiveness that both influence the development of different theories of value and represent their real-world outcome.
Chapter 5, ‘Value as Struggle’, revisits aspects of both the ‘substantialist’ and the ‘relational’ Marx introduced in the first and second chapters, using open