Nobel Laureate Edmund Phelps and an international group of economists argue that economic health depends on the widespread presence of certain values, in particular individualism and self-expression.

Nobel Laureate Edmund Phelps has long argued that the high level of innovation in the lead nations of the West was never a result of scientific discoveries plus entrepreneurship, as Schumpeter thought. Rather, modern values—particularly the individualism, vitalism, and self-expression prevailing among the people—fueled the dynamism needed for widespread, indigenous innovation. Yet finding links between nations’ values and their dynamism was a daunting task. Now, in Dynamism, Phelps and a trio of coauthors take it on.

Phelps, Raicho Bojilov, Hian Teck Hoon, and Gylfi Zoega find evidence that differences in nations’ values matter—and quite a lot. It is no accident that the most innovative countries in the West were rich in values fueling dynamism. Nor is it an accident that economic dynamism in the United States, Britain, and France has suffered as state-centered and communitarian values have moved to the fore.

The authors lay out their argument in three parts. In the first two, they extract from productivity data time series on indigenous innovation, then test the thesis on the link between values and innovation to find which values are positively and which are negatively linked. In the third part, they consider the effects of robots on innovation and wages, arguing that, even though many workers may be replaced rather than helped by robots, the long-term effects may be better than we have feared. Itself a significant display of creativity and innovation, Dynamism will stand as a key statement of the cultural preconditions for a healthy society and rewarding work.

Since the 1970s a gulf has opened between the pay of low-paid workers and the pay of the middle class. No longer able to earn a decent wage in respectable work, many have left the labor force, and the job attachment of those remaining has weakened. For Edmund Phelps, this is a failure of political economy whose widespread effects are undermining the free-enterprise system. His solution is a graduated schedule of tax subsidies to enterprises for every low-wage worker they employ. As firms hire more of these workers, the labor market would tighten, driving up their pay levels as well as their employment.

Dissatisfied with the explanations of the business cycle provided by the Keynesian, monetarist, New Keynesian, and real business cycle schools, Edmund Phelps has developed from various existing strands—some modern and some classical—a radically different theory to account for the long periods of unemployment that have dogged the economies of the United States and Western Europe since the early 1970s. Phelps sees secular shifts and long swings of the unemployment rate as structural in nature. That is, they are typically the result of movements in the natural rate of unemployment (to which the equilibrium path is always tending) rather than of long-persisting deviations around a natural rate itself impervious to changing structure. What has been lacking is a “structuralist” theory of how the natural rate is disturbed by real demand and supply shocks, foreign and domestic, and the adjustments they set in motion.

To study the determination of the natural rate path, Phelps constructs three stylized general equilibrium models, each one built around a distinct kind of asset in which firms invest and which is important for the hiring decision. An element of these models is the modern economics of the labor market whereby firms, in seeking to dampen their employees’ propensities to quit and shirk, drive wages above market-clearing levels-the phenomenon of the “incentive wage”—and so generate involuntary unemployment in labor-market equilibrium. Another element is the capital market, where interest rates are disturbed by demand and supply shocks such as shifts in profitability, thrift, productivity, and the rate of technical progress and population increase. A general-equilibrium analysis shows how various real shocks, operating through interest rates upon the demand for employees and through the propensity to quit and shirk upon the incentive wage, act upon the natural rate (and thus equilibrium path).

In an econometric and historical section, the new theory of economic activity is submitted to certain empirical tests against global postwar data. In the final section the author draws from the theory some suggestions for government policy measures that would best serve to combat structural slumps.