Erik Hurst – författare

Start-ups and other entrepreneurial ventures make a significant contribution to the US economy, particularly in the tech sector, where they comprise some of the largest and most influential companies. Yet for every high-profile, high-growth company like Apple, Facebook, Microsoft, and Google, many more fail. This enormous heterogeneity poses conceptual and measurement challenges for economists concerned with understanding their precise impact on economic growth. Measuring Entrepreneurial Businesses brings together economists and data analysts to discuss the most recent research covering three broad themes. The first chapters isolate high- and low-performing entrepreneurial ventures and analyze their roles in creating jobs and driving innovation and productivity. The next chapters turn the focus on specific challenges entrepreneurs face and how they have varied over time, including over business cycles. The final chapters explore core measurement issues, with a focus on new data projects under development that may improve our understanding of this dynamic part of the economy.

NBER Macroeconomics Annual 2020 presents research by leading scholars on central issues in contemporary macroeconomics. George-Marios Angeletos, Zhen Huo, and Karthik Sastry ask how to model expectations without rational expectations. They find that in response to business cycle shocks, expectations underreact initially but eventually overshoot, which in their view favors models with dispersed, noisy information and overextrapolation of expectations. Next, Esteban Rossi-Hansberg, Pierre-Daniel Sarte, and Nicholas Trachter contrast the patterns of rising aggregate firm market concentration with falling market concentration over time at the local level. Some associate rising concentration with less competition and more market power, but because most product markets are local, studying changes in local competition, as opposed to trends in aggregate competition, provides important insights. Adam Guren, Alisdair McKay, Emi Nakamura, and Jón Steinsson develop a novel econometric procedure to recover structural parameters using cross-region variation, for example, to estimate direct effects of housing wealth changes on individual household consumption. To avoid confounding direct and indirect effects, the authors isolate the direct effect of house price changes on consumption by using other estimates of demand multipliers from the local government spending literature to deflate estimates of the total effect of local consumption on local house prices. Peter Klenow and Huiyu Li examine the sources of reduced productivity growth by quantifying the contribution of innovation to economic growth. They find that young firms generate roughly half the productivity growth, most of the changes in productivity during the mid-1990s are accounted for by older firms, and most growth results from quality improvements on incumbents’ own products. In the fifth chapter, Fatih Guvenen, Greg Kaplan, and Jae Song use detailed micro panel data from the Social Security Administration to assess the progress women have made into the top 1% and top 0.1% of the income distribution over time. Finally, Joachim Hubmer, Per Krusell, and Anthony Smith Jr. explore the reasons for growing wealth inequality across the developed world. They argue that the significant drop in tax progressivity starting in the late 1970s was the most important source of growing wealth inequality in the United States. The sharp observed increases in earnings inequality and the falling labor share cannot account for the bulk of the increase in wealth inequality.

Authoritative takes on the most current and pressing issues in macroeconomics today.The NBER Macroeconomics Annual provides a forum for leading economists to participate in important debates in macroeconomics and to report on major developments in macroeconomic analysis and policy.The NBER Macroeconomics Annual brings together leading scholars to discuss five research papers on central issues in contemporary macroeconomics. First, Andrea Eisfeldt, Antonio Falato, and Mindy Xiaolan document the rise of a new class of worker that receives part of its labor income as equity-based compensation, its role in the recent decline in the labor share of income, and implications for the returns to skilled labor and the implied capital-skill complementarity. Next, Michael Bauer and Eric Swanson focus on monetary policy shocks and argue the correlation between estimated monetary surprises and previously available information can be explained by uncertainty about the parameters of the monetary policy rule. Using new data and methods they find effects of monetary policy on macroeconomic variables that are much larger than previously estimated. Job Boerma and Loukas Karabarbounis provide a framework for quantitatively exploring the gap in wealth between White and Black Americans over the past 150 years and examine the effectiveness of reparations as a tool for closing this gap. Guido Menzio considers workers who do not have rational expectations, and whose “stubborn” beliefs change the response of wages to technology shocks, resulting in sticky wages. He finds that the larger the fraction of workers with stubborn beliefs, the more volatile unemployment is. Finally, Rishabh Aggarwal, Adrien Auclert, Matthew Rognlie, and Ludwig Straub investigate the growth—particularly in the United States—of private savings, current account deficits, and fiscal deficits after 2020. They argue that fiscal deficits lead to large and persistent increases in private savings and current account deficits.

Provides a forum for leading economists to participate in important debates in macroeconomics and to report on major developments in macroeconomic analysis and policy.The NBER Macroeconomics Annual features research by leading scholars on important issues in contemporary macroeconomics. David Berger, Kyle Herkenhoff, Andreas Kostol, and Simon Mongey consider the importance of market power in the labor market and develop a theory of monopsony that incorporates worker-firm-specific preference heterogeneity, search frictions, and firm granularity. They apply this theory to analyze the effects of monopsony on wages, job flows, and welfare. Mary Amiti, Sebastian Heise, Fatih Karahan, and Ayşegül Şahin examine how supply chain disruptions and labor supply constraints contributed to the recent rise of inflation, recognizing their interactions with the shift of consumption from services to goods and expansionary monetary policy. Daron Acemoglu, David Autor, and Christina Patterson explore the hypothesis that slow productivity growth stems from an unbalanced sectoral distribution of innovation—because innovation depends on complementary innovations among input suppliers, there can be rapid technological progress in a subset of inputs but slow productivity growth in the aggregate. Greg Buchak, Gregor Matvos, Tomasz Piskorski, and Amit Seru investigate two important margins of adjustment in credit markets—banks’ ability to sell loans and shadow bank activity—and argue that accounting for them is critical for analyzing how lending responds to economic or policy shocks and the way such shocks are amplified through financial intermediaries. Finally, Pedro Bordalo, Nicola Gennaioli, Rafael La Porta, Matthew O’Brien, and Andrei Shleifer demonstrate that overreaction of long-term profit expectations to reported profits could help reconcile Robert Shiller’s “excess volatility” puzzle with economic fluctuations more generally.