Combining powerful insights from theory with close observation of data, Robert Barro’s new book goes a long way toward the establishment of an empirically based macroeconomic theory.

Barro first presents a positive theory of government economic policymaking by using applied game theory to model strategic interactions between policymakers and the private sector. He applies this framework to questions of rules, discretion, and reputation in monetary policy. He then takes a close look at whether monetary disturbances have a strong effect on business fluctuations, concluding that the effect is neither as strong nor as pervasive as many economists have believed. He consequently turns his attention from monetary policy to fiscal policy. The originator of the modern theory of Ricardian equivalence, which says that taxes and budget deficits are logically equivalent, Barro summarizes the current debate and argues that the Ricardian theorem is the correct starting point for the analysis of intertemporal government finance. Finally, stating his belief that macroeconomists have probably spent too much time thinking about deficits—which relate to how government spending is financed—and not enough about the effects of government expenditures themselves, he examines evidence of the macroeconomic effects of government spending in the United States and Great Britain.

Few ideas in the past century have had wider financial, political, and governmental impact than that of economic growth. The common belief that endless economic growth, as measured by Gross Domestic Product, is not only possible but actually essential for the flourishing of civilization remains a powerful policy goal and aspiration for many. In The Mismeasure of Progress, Stephen J. Macekura exposes a historical road not taken, illuminating the stories of the activists, intellectuals, and other leaders who long argued that GDP growth was not all it was cracked up to be.

Beginning with the rise of the growth paradigm in the 1940s and 1950s and continuing through the present day, The Mismeasure of Progress is the first book on the myriad thinkers who argued against growth and the conventional way progress had been measured and defined. For growth critics, questioning the meaning and measurement of growth was a necessary first step to creating a more just, equal, and sustainable world. These critics argued that focusing on growth alone would not resolve social, political, and environmental problems, and they put forth alternate methods for defining and measuring human progress.

​In today’s global political scene—marked by vast inequalities of power and wealth and made even more fraught by a global climate emergency—the ideas presented by these earlier critics of growth resonate more loudly than ever. Economic growth appealed to many political leaders because it allowed them to avoid addressing political trade-offs and class conflict. It sustained the fiction that humans are somehow separate from nonhuman “nature,” ignoring the intimate and dense connections between the two. In order to create a truly just and equitable society, Macekura argues, we need a clear understanding of our collective needs beyond growth and more holistic definitions of progress that transcend economic metrics like GDP.

Far more than an intellectual puzzle for pundits, economists, and policymakers, economic growth--its makings and workings--is a subject that affects the well-being of billions of people around the globe. In The Mystery of Economic Growth, Elhanan Helpman discusses the vast research that has revolutionized understanding of this subject in recent years, and summarizes and explains its critical messages in clear, concise, and accessible terms.

The tale of growth economics, as Helpman tells it, is organized around a number of themes: the importance of the accumulation of physical and human capital; the effect of technological factors on the rate of this accumulation; the process of knowledge creation and its influence on productivity; the interdependence of the growth rates of different countries; and, finally, the role of economic and political institutions in encouraging accumulation, innovation, and change.

One of the leading researchers of economic growth, Helpman succinctly reviews, critiques, and integrates current research--on capital accumulation, education, productivity, trade, inequality, geography, and institutions--and clarifies its relevance for global economic inequities. In particular, he points to institutions--including property rights protection, legal systems, customs, and political systems--as the key to the mystery of economic growth. Solving this mystery could lead to policies capable of setting the poorest countries on the path toward sustained growth of per capita income and all that that implies--and Helpman's work is a welcome and necessary step in this direction.