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Working Paper
Missing Growth from Creative Destruction
Statistical agencies typically impute inflation for disappearing products from the inflation rate for surviving products. As some products disappear precisely because they are displaced by better products, inflation may be lower at these points than for surviving products. As a result, creative destruction may result in overstated inflation and understated growth. We use a simple model to relate this ?missing growth? to the frequency and size of various kinds of innovations. Using U.S. Census data, we then apply two ways of assessing the magnitude of missing growth for all private nonfarm ...
Journal Article
How Does Business Dynamism Link to Productivity Growth?
The rate of business turnover has declined since the late 1970s, which some argue has hampered growth in innovation and productivity. This sounds like a plausible contributor to lackluster economic growth, but the connection between business turnover and productivity is more subtle. First, while business turnover has steadily declined over the past 35 years, aggregate productivity growth has not. Second, even when business starts were at historical highs, existing firms lost very little market share to new firms. This suggests that older firms are just as innovative as newcomers.
Journal Article
Nonmanufacturing as an Engine of Growth
In official statistics, manufacturing is the top contributor to U.S. productivity growth despite its shrinking share of employment. However, official numbers tend to understate growth among new producers that improve on existing producers, which is more prevalent outside of manufacturing. Accounting for such missing productivity growth shows that it plays a larger role in sectors such as retail trade and services. Also, the relative contribution of manufacturing to productivity growth has dropped significantly. These findings suggest that nonmanufacturing may be an increasingly important ...
Working Paper
Productivity Slowdown: Reducing the Measure of Our Ignorance
Growth accounting suggests that the bulk of the post-2004 slowdown in output growth in the U.S. is attributed to a residual called TFP. In this paper we provide a tractable accounting framework with firm heterogeneity to link this residual to innovations, markup dispersion, and potential measurement errors. Theories of creative destruction offer rich testable predictions of how the quality upgrading of products, the process efficiency of different firms, and markup dispersion in the market interact and therefore constitute a key approach to shed light on the slowdown in TFP growth. Surveying ...
Journal Article
What's Holding Back Business Formation?
The pace of business start-ups in the United States has declined over the past few decades. Economic theory suggests that business creation depends on the available workforce, and data analysis supports this strong link. By contrast, the relationship between start-ups and labor productivity is less well-defined, in part because entrepreneurs face initial costs that rise with productivity, specifically their own lost income from alternative employment. Overall, policies that incorporate improving labor availability may help to boost new business growth.
Journal Article
Is Optimism for Artificial Intelligence Boosting Investment?
U.S. business spending related to artificial intelligence (AI) grew substantially in 2025 among publicly traded firms, which account for the bulk of overall investment. Analyzing sentiment data from quarterly company earnings calls can help infer current and evolving optimism towards AI. Public firm data show growth in capital spending and research and development funding has come entirely from the largest companies that are positive about AI. While market concentration among large firms raises some challenges, optimism measures suggest that AI investment will continue to contribute to future ...
Working Paper
Productivity in the World Economy During and After the Pandemic
This paper reviews how productivity has evolved around the world since the pandemic began in 2020. Productivity in many countries has been volatile. We conclude that the broad contours of productivity growth during this period have been heavily shaped by predictable cyclical patterns. Looking at U.S. industry data, we find little evidence that the sharp rise in telework has had a notable impact, good or bad, on productivity. Stepping back, the data so far appear consistent with a continuation of the slow-productivity-growth trajectory that we faced before the pandemic.
Journal Article
Productivity During and Since the Pandemic
U.S. labor productivity initially surged in 2020 during the COVID-19 pandemic, despite the massive economic upheaval. As the economy recovered, the level of productivity retreated to its slow pre-pandemic trend. As of mid-2024, it remained close to but just above that trend. The surge and retreat in productivity follows the pre-pandemic cyclical relationship in which U.S. productivity rises temporarily in recessions. This example highlights the need to look through temporary cyclical effects when trying to infer longer-run trends.
Working Paper
The Impact of COVID on Potential Output
The level of potential output is likely to be subdued post-COVID relative to its previous estimates. Most clearly, capital input and full-employment labor will both be lower than they previously were. Quantitatively, however, these effects appear relatively modest. In the long run, labor scarring could lead to lower levels of employment, but the slow pre-recession pace of GDP growth is unlikely to be substantially affected.
Journal Article
Does Working from Home Boost Productivity Growth?
An enduring consequence of the COVID-19 pandemic is a notable shift toward remote and hybrid work. This has raised questions regarding whether the shift had a significant effect on the growth rate of U.S. productivity. Analyzing the relationship between GDP per hour growth and the ability to telework across industries shows that industries that are more adaptable to remote work did not experience a bigger decline or boost in productivity growth since 2020 than less adaptable industries. Thus, teleworking most likely has neither substantially held back nor boosted productivity growth.