How Keynes Invented the Economics of the Common Good Against Perfect Markets
Economics is not an exact science. This assertion, which makes Wall Street modelers cringe, nonetheless runs through three centuries of economic thought — from French physiocrats to John Maynard Keynes. In “Keynes for Our Times,” Robert Skidelsky, the definitive biographer of the British economist, defends this heterodox vision with particular urgency: faced with systemic crises and growing inequalities, economics must become once again a “moral science” centered on the common good rather than mathematical optimization.
Skidelsky does not merely rehabilitate Keynes. He diagnoses the intellectual impasse of neoliberal orthodoxy and proposes an alternative theoretical framework, anchored in the philosophical heritage of the Bloomsbury group and G.E. Moore. His wager: to show that the Keynesian conception of uncertainty and economic ethics can respond to contemporary challenges better than models of perfect equilibrium.
The Essentials
- Keynes conceived of economics as a moral science guided by the pursuit of the common good, inherited from his philosophical training with G.E. Moore and the Bloomsbury group
- Radical uncertainty, not calculable risk, characterizes economic decisions according to Keynes, challenging neoclassical optimization models
- Austerity policies post-2008 illustrate the failure of economic orthodoxy in the face of systemic crises
- Skidelsky proposes a return to the ethical foundations of political economy to address inequality and financial instability
The Author
Robert Skidelsky needs no introduction in economic circles. Professor emeritus at the University of Warwick and member of the British House of Lords, he has devoted his career to the study of Keynes, publishing between 1983 and 2000 a monumental three-volume biography that is authoritative. A historian by training, Skidelsky approaches economics through its political and moral dimensions rather than through its equations. This perspective, unusual in the profession, allows him to illuminate contemporary issues with rare historical depth.
“Keynes for Our Times,” published in 2024, synthesizes forty years of research on the Keynesian legacy. Skidelsky mobilizes his intimate knowledge of the Keynes archives and his privileged position as an observer of British economic policy debates. The work is situated in the post-pandemic context, where governments have massively resorted to public spending, empirically validating certain Keynesian intuitions.
Economics as a Moral Science: The Bloomsbury Legacy
Skidelsky’s central thesis can be summed up in a formula: Keynes conceived of economics as a branch of ethics, not as a social physics. This vision has its roots in Keynes’s intellectual formation within the Bloomsbury group and under the influence of philosopher G.E. Moore, author of “Principia Ethica” (1903).
Moore taught that the good cannot be reduced to utility or pleasure — a position that directly opposes the Benthamian utilitarianism on which neoclassical economics rests. For Keynes, this lesson was fundamental: economics must serve moral ends, notably “the good life” and human flourishing, rather than simple maximization of individual utility.
Skidelsky documents how this philosophy translates concretely into Keynesian economic theory. Where neoclassical orthodoxy posits rational agents optimizing their utility in a universe of calculable risk, Keynes insists on the radical uncertainty that characterizes economic decisions. Investors do not know the probabilities of future events — they navigate blindly, guided by what Keynes calls the “animal spirits.”
This uncertainty justifies public intervention. Since markets do not naturally tend toward optimal equilibrium, the State must act to stabilize economic activity and guarantee full employment. Economic policy thus becomes an instrument in service of ethical objectives: ensuring the dignity of work, reducing inequality, preserving social cohesion.
The Failure of Orthodoxy: The Lesson of 2008
Skidelsky uses the 2008 crisis and its aftermath to illustrate the impasse of orthodox economics. The Dynamic Stochastic General Equilibrium (DSGE) models used by central banks had predicted neither the crisis nor its magnitude. Worse: the austerity policies implemented after 2010, inspired by the theory of “Ricardian equivalence,” worsened the recession in Europe.
The author cites precise data to support his argument. In Greece, GDP fell 25% between 2008 and 2016 as a result of austerity plans imposed by the troika. In the United Kingdom, labor productivity has stagnated since 2008, a phenomenon that Skidelsky attributes in part to underinvestment in the public sector. Conversely, the United States, which pursued a more expansionary policy, better weathered the crisis.
This empirical divergence validates, according to Skidelsky, Keynesian intuitions about the ineffectiveness of automatic adjustment mechanisms. When an economy enters recession, the spontaneous fall in wages and prices is insufficient to restore equilibrium — it may even worsen deflation and decline in demand. Only public intervention can break this vicious circle.
The analysis goes beyond the technical framework. Skidelsky shows that austerity is not merely economically ineffective: it is morally questionable because it places the cost of the crisis on the most vulnerable. Companies are reinventing skills validation in the face of technological upheaval, but social adjustment remains largely the responsibility of workers.
The Keynesian Revision: Uncertainty and Investment
The technical heart of Skidelsky’s argument concerns the distinction between risk and uncertainty, central to Keynes’s thinking but often neglected by his followers. Risk corresponds to events whose probability of occurrence can be calculated — automobile insurance rests on this logic. Uncertainty concerns situations where no objective probability can be assigned to future events.
This distinction illuminates investment behavior. An entrepreneur launching a new technology cannot calculate the probability of success of his project: it is an innovation without historical precedent. In this context, the decision to invest relies less on rational calculation than on intuition and confidence — what Keynes calls the “animal spirits.”
Skidelsky draws practical conclusions for economic policy. Since private investment fluctuates according to unpredictable cycles of confidence, the State must maintain a sufficient level of public investment to stabilize activity. This logic justifies counter-cyclical policies: spend more in recession, save in periods of expansion.
The author updates this analysis by applying it to contemporary challenges. Recent debates questioned the risks of systemic crisis linked to over-investment in technology. According to Skidelsky, these cycles of over-investment followed by sharp correction have characterized market economies for two centuries. Only a counter-cyclical public investment policy can cushion their social effects.
The Political Economy of the Common Good
Beyond economic technique, Skidelsky defends a conception of the State that contrasts sharply with liberal orthodoxy. The State is not merely a corrective to “market failures” — it carries a vision of the common good that the market cannot express.
This approach converges with contemporary concerns about inequality and ecological sustainability. Keynes already defended in the 1930s a reduction in working hours to share productivity gains. He envisioned a society of abundance where capital accumulation would give way to “the good life,” centered on social relations, culture, and personal flourishing.
Skidelsky updates this vision by applying it to twenty-first-century challenges. Facing climate change, the State must direct investment toward ecological transition, even if market signals do not spontaneously indicate it. Facing automation, it must organize the transition toward a society of free time rather than suffer technological unemployment.
This Keynesian political economy presupposes a rehabilitation of democratic planning. Not bureaucratic planning of the Soviet type, but a collective capacity to define investment priorities and resource allocation. This logic illustrated how certain investments of general interest cannot rely on market logic in the digital sector: some public goods cannot rest on commercial principles.
The Limits of the Synthesis
Skidelsky’s undertaking, stimulating as it is, presents certain analytical weaknesses. The first lies in the idealization of Keynes himself. The author presents the British economist as a coherent and visionary thinker, glossing over the contradictions and shifts in his thought. The Keynes of 1919, who advocates a return to the gold standard in the “Economic Consequences of the Peace,” differs significantly from the theorist of effective demand in 1936.
The second limitation concerns the contemporary applicability of Keynesian solutions. Keynes wrote in the context of largely closed economies and regulated financial systems. Twenty-first-century globalized economics poses challenges that Skidelsky addresses superficially. How to pursue a Keynesian policy in a world of mobile capital and global value chains? The author sidesteps this central question.
Finally, Skidelsky underestimates the political constraints of the ethical economics he advocates. Defining the “common good” presupposes a social consensus that is largely lacking in our polarized societies. Debates on ecological transition, immigration, or inequality reveal contradictory visions of social justice. Economics as a moral science stumbles on pluralism of values.
Why Read It
“Keynes for Our Times” deserves careful reading for several reasons. First, it offers a credible intellectual alternative to the neoliberal consensus that still largely dominates international economic institutions. Skidelsky does not merely criticize orthodoxy: he proposes a coherent theoretical framework and practical tools.
Furthermore, the work illuminates contemporary economic policy debates. Discussions about public debt, inflation, or inequality take on new depth when placed within this ethical perspective. The reader better understands why some economists advocate for expansionary policies while others preach budgetary rigor.
Finally, the book offers stimulating reflection on the role of the economist in society. Skidelsky shows that economics is never neutral: it always carries an implicit vision of social justice and human progress. Assuming this normative dimension, rather than concealing it behind a veil of scientific neutrality, may be the condition for a more democratic economics.
The work addresses both professional economists and citizens concerned with understanding economic policy issues. Skidelsky writes in accessible language, avoiding technical jargon without sacrificing analytical rigor. This pedagogical quality serves a public debate too often monopolized by experts.
Bibliographic Information - Title: Keynes for Our Times - Author: Robert Skidelsky - Publisher: Yale University Press - Publication date: 2024, 320 pages