For 25 years, theory about the causes of, and possible solutions to, the problem of unemployment has been dominated by Phelps' and Friedman's natural rate of unemployment hypothesis. This postulates that the equilibrium rate of unemployment consistent with steady inflation is determined by structural variables: sustainable reductions in unemployment can be achieved only by measures to change underlying microeconomic structures, such as benefit and pay bargaining systems. Belief in the hypothesis has faltered since the 1980s, the hypothesis being unable to explain the dramatic upward shifts in European unemployment rates. These essays reflect upon the fundamental structures underlying the hypothesis, assess the related evidence, and look forwards, suggesting possible modifications. In contrast to the single rate postulated by the natural rate hypothesis, several of the contributors propose that there are ranges of unemployment rates consistent with steady inflation.

Traditionally, economic growth and business cycles have been treated independently. However, the dependence of GDP levels on its history of shocks, what economists refer to as “hysteresis,” argues for unifying the analysis of growth and cycles. In this paper, we review the recent empirical and theoretical literature that motivate this paradigm shift. The renewed interest in hysteresis has been sparked by the persistence of the Global Financial Crisis and fears of a slow recovery from the Covid-19 crisis. The findings of the recent literature have far-reaching conceptual and policy implications. In recessions, monetary and fiscal policies need to be more active to avoid the permanent scars of a downturn. And in good times, running a high-pressure economy could have permanent positive effects.

This book retraces the history of macroeconomics from Keynes's General Theory to the present. Central to it is the contrast between a Keynesian era and a Lucasian - or dynamic stochastic general equilibrium (DSGE) - era, each ruled by distinct methodological standards. In the Keynesian era, the book studies the following theories: Keynesian macroeconomics, monetarism, disequilibrium macro (Patinkin, Leijongufvud, and Clower) non-Walrasian equilibrium models, and first-generation new Keynesian models. Three stages are identified in the DSGE era: new classical macro (Lucas), RBC modelling, and second-generation new Keynesian modeling. The book also examines a few selected works aimed at presenting alternatives to Lucasian macro. While not eschewing analytical content, Michel De Vroey focuses on substantive assessments, and the models studied are presented in a pedagogical and vivid yet critical way.

The Wage Curve casts doubt on some of the most important ideas in macroeconomics, labor economics, and regional economics. According to macroeconomic orthodoxy, there is a relationship between unemployment and the rate of change of wages. According to orthodoxy in labor economics and regional economics an area's wage is positively related to the amount of joblessness in the area. The Wage Curve suggests that both these beliefs are incorrect. Blanchflower and Oswald argue that the stable relationship is a downward-sloping convex curve linking local unemployment and the level of pay. Their study, one of the most intensive in the history of social science, is based on random samples that provide computerized information on nearly four million people from sixteen countries. Throughout, the authors systematically present evidence and possible explanations for their empirical law of economics.

Do high rates of economic growth create conditions favourable to their own maintenance? Or can a period of high growth 'sow the seeds of its own destruction'? This book addresses these questions by conceiving growth and structural change as path dependent processes. Methodological, theoretical and empirical insights are combined in an extended model of cumulative causation, which shows how endogenously induced technological and institutional changes may cause the dynamics of a period of high growth to break down. This casts new light on the debate over Britain's economic decline.