Our answer: Not so well. We reached that conclusion after reviewing recent research on the role of technology as a source of economic fluctuations. The bulk of the evidence suggests a limited role for aggregate technology shocks, pointing instead to demand factors as the main force behind the strong positive comovement between output and labor input measures.

The new classical approach to macroeconomics, which assumes that people gather and use economic information efficiently, has been the most important theoretical advance since the Keynesian revolution of the 1930s. This book surveys the major contributions of the "second generation" of proponents of the new classical approach, emphasizing real business cycle theories and applying them to a variety of phenomena. The chapters include expositions of growth theory, real models of business fluctuations, the informational role of prices, consumption, fiscal policy, rules versus discretion in monetary policy, time consistency and policy, and monetary models. Although the chapters are aimed at advanced undergraduate- and graduate-level students, they will also be of interest to researchers who are looking for a compact and original exposition of the new classical macroeconomics.

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.

Real Business Cycle theory combines the remains of monetarism with the new classical macroeconomics, and has become one of the dominant approaches within contemporary macroeconomics today. This volume presents: * the authoritative anthology in RBC. The work contains the major articles introducing and extending the theory as well as critical literature * an extensive introduction which contains an expository summary and critical evaluation of RBC theory * comprehensive coverage and balance between seminal papers and extensions; proponents and critics; and theory and empirics. Macroeconomics is a compulsory element in most economics courses, and this book will be an essential guide to one of its major theories.

This volume presents six new papers on environmental and energy economics and policy in the United States. Rebecca Davis, J. Scott Holladay, and Charles Sims analyze recent trends in and forecasts of coal-fired power plant retirements with and without new climate policy. Severin Borenstein and James Bushnell examine the efficiency of pricing for electricity, natural gas, and gasoline. James Archsmith, Erich Muehlegger, and David Rapson provide a prospective analysis of future pathways for electric vehicle adoption. Kenneth Gillingham considers the consequences of such pathways for the design of fuel vehicle economy standards. Frank Wolak investigates the long-term resource adequacy in wholesale electricity markets with significant intermittent renewables. Finally, Barbara Annicchiarico, Stefano Carattini, Carolyn Fischer, and Garth Heutel review the state of research on the interactions between business cycles and environmental policy.