Productivity, Place, and Plants
Benjamin Schoefer, Oren Ziv
Review of Economics and Statistics,
im Erscheinen
Abstract
Why do cities differ so much in productivity? A long literature has sought out systematic sources, such as inherent productivity advantages, market access, agglomeration forces, or sorting. We document that up to three quarters of the measured regional productivity dispersion is spurious, reflecting the “luck of the draw” of finite counts of idiosyncratically heterogeneous plants that happen to operate in a given location. The patterns are even more pronounced for new plants, hold for alternative productivity measures, and broadly extend to European countries. This large role for individual plants suggests a smaller role for places in driving regional differences.
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Declining Business Dynamism in Europe: The Role of Shocks, Market Power, and Technology
Filippo Biondi, Sergio Inferrera, Matthias Mertens, Javier Miranda
IWH-CompNet Discussion Papers,
Nr. 2,
2023
Abstract
We study the changing patterns of business dynamism in Europe after 2000 using novel micro-aggregated data that we collect for 19 European countries. In all of them, we document a decline in job reallocation rates that concerns most economic sectors. This is mainly driven by dynamics within sectors, size classes, and age classes rather than by compositional changes. Large and mature firms show the strongest decline in job reallocation rates. Simultaneously, the shares of employment and sales of young firms decline. Consistent with US evidence, firms’ employment changes have become less responsive to productivity. However, the dispersion of firms’ productivity shocks has decreased too. To enhance our understanding of these patterns, we derive a firm-level framework that relates changes in firms’ productivity, market power, and technology to job reallocation and firms’ responsiveness.
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Declining Business Dynamism in Europe: The Role of Shocks, Market Power, and Technology
Filippo Biondi, Sergio Inferrera, Matthias Mertens, Javier Miranda
IWH Discussion Papers,
Nr. 19,
2023
Abstract
We study the changing patterns of business dynamism in Europe after 2000 using novel micro-aggregated data that we collect for 19 European countries. In all of them, we document a decline in job reallocation rates that concerns most economic sectors. This is mainly driven by dynamics within sectors, size classes, and age classes rather than by compositional changes. Large and mature firms show the strongest decline in job reallocation rates. Simultaneously, the shares of employment and sales of young firms decline. Consistent with US evidence, firms’ employment changes have become less responsive to productivity. However, the dispersion of firms’ productivity shocks has decreased too. To enhance our understanding of these patterns, we derive a firm-level framework that relates changes in firms’ productivity, market power, and technology to job reallocation and firms’ responsiveness.
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Robots, Occupations, and Worker Age: A Production-unit Analysis of Employment
Liuchun Deng, Steffen Müller, Verena Plümpe, Jens Stegmaier
IWH Discussion Papers,
Nr. 5,
2023
Abstract
We analyse the impact of robot adoption on employment composition using novel micro data on robot use in German manufacturing plants linked with social security records and data on job tasks. Our task-based model predicts more favourable employment effects for the least routine-task intensive occupations and for young workers, with the latter being better at adapting to change. An event-study analysis of robot adoption confirms both predictions. We do not find adverse employment effects for any occupational or age group, but churning among low-skilled workers rises sharply. We conclude that the displacement effect of robots is occupation biased but age neutral, whereas the reinstatement effect is age biased and benefits young workers most.
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Automation with Heterogeneous Agents: The Effect on Consumption Inequality
Tommaso Santini
IWH Discussion Papers,
Nr. 28,
2022
Abstract
In this paper, I study technological change as a candidate for the observed increase in consumption inequality in the United States. I build an incomplete market model with educational choice combined with a task-based model on the production side. I consider two channels through which technology affects inequality: the skill that an agent can supply in the labor market and the level of capital she owns. In a quantitative analysis, I show that (i) the model replicates the increase in consumption inequality between 1981 and 2008 in the US (ii) educational choice and the return to wealth are quantitatively important in explaining the increase in consumption inequality.
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