Using the Korean manufacturing firm-level data, this paper confirms that three stylized facts on importing hold in Korea: the ratio of imported inputs in total inputs tends to be procyclical; the use of imported inputs increases productivity; and larger firms are more likely to use imported inputs. As a result, we find that firm-level import decisions explain a non-trivial fraction of aggregate productivity fluctuations in Korea over the period between 2006 and 2012. Main findings of this paper suggest a possible link between the recent global productivity slowdown and the global trade slowdown.
Using the Korean manufacturing firm-level data, this paper confirms that three stylized facts on importing hold in Korea: the ratio of imported inputs in total inputs tends to be procyclical; the use of imported inputs increases productivity; and larger firms are more likely to use imported inputs. As a result, we find that firm-level import decisions explain a non-trivial fraction of aggregate productivity fluctuations in Korea over the period between 2006 and 2012. Main findings of this paper suggest a possible link between the recent global productivity slowdown and the global trade slowdown.
1 Ali Dogramaci and Nabil R. Adam 1.1. OVERVIEW With the decline of U.S. productivity growth, interest has surged to under stand the behavior of productivity measures through time, the conceptual foundations of productivity analysis, and the linkage between productivity performance and other major forces in the economy. The purpose of this volume is to present a brief overview of some of the concepts used in aggre gate and industry-level productivity analyses and the results of some of the recent research in this field. The book is divided into three parts. Part I covers some of the methodo logical approaches used in aggregate and industry-level productivity studies. Part II deals with the movement of labor productivity measures through time. The papers in this part of the book study productivity changes as uni variate time series and analyze some of the characteristics of the patterns displayed. The papers in Part III address the issues of measurement of capi tal, the relation of capital formation to productivity growth, and the rela tion of imported intermediate inputs to U.S. productivity performance.
In chapter one I study pairwise covariances of firm-level productivity, sales, and profit growth rates for public firms in the United States. The data suggest that pairwise covariances of firm growth rates drive the variance of aggregate growth rates in all three variables. High-productivity firms contribute most to aggregate variance in absolute terms, but least per dollar of market value-which may explain why investors demand lower returns from high-productivity firms. A tractable DSGE model helps explain the evidence on firm-level covariance endogenously. In the model, a firm's expected excess stock returns increase as the firm's productivity covaries more with aggregate productivity, relative to the firm's market value. In chapter two, coauthored with Daisoon Kim, we ask where fluctuations in aggregate productivity come from, and what role markups and scale economies play in transmitting fluctuations in firm productivity to aggregate productivity. We develop an empirical framework that decomposes TFP into industry, peer, firm, and entry-exit components. We aggregate these components using a new approximate expression for aggregate TFP that lets us investigate explicitly the role of markups and scale economies in transmitting firm TFP innovations to aggregate TFP. In an application using data on public firms, we find that innovations to the firm-specific component of firm TFP drive most fluctuations in firm TFP, while innovations to the industry component drive most fluctuations in aggregate TFP. Innovations to the peer component appear to play a modest role.
We analyze the impact of rising import competition from China on U.S. innovative activities. Using Compustat data, we find that import competition induces R&D expenditures to be reallocated towards more productive and more profitable firms within each industry. Such reallocation effect has the potential to offset the average drop in firm-level R&D identified in the previous literature. Indeed, our quantitative analysis shows no adverse impact of import competition on aggregate R&D expenditures. Taking the analysis beyond manufacturing, we find that import competition has led to reallocation of researchers towards booming service industries, including business and repairs, personal services, and financial services.
Abstract: We empirically characterize the mechanics of trade adjustment during the Argentine crisis using detailed firm-level customs data covering the universe of import transactions during 1996-2008. Our main findings are as follows: First, the extensive margin defined as the entry and exit of firms or of products (at the country level) plays a small role during the crisis. Second, the sub-extensive margin defined as the churning of inputs within firms plays a sizeable role in aggregate adjustment. This implies that the true increase in input costs exceeds that imputed from conventional price indices. Third, the relative importance of these margins and of overall trade adjustment varies with firm size. Motivated by these facts, we build a model of trade in intermediate inputs with heterogenous firms, fixed import costs, and round-about production to evaluate the channels through which a collapse in imports effects TFP in manufacturing. Measured aggregate productivity in the sector depends on within-firm adjustments to the varieties imported as well as the joint distribution of each firm's technology and the share of imports in its total spending on inputs. We simulate an imported input cost shock and show that these mechanisms can deliver quantitatively significant declines in manufacturing TFP
This volume uses the study of firm dynamics to investigate the factors preventing faster productivity growth in Latin America and the Caribbean, pushing past the limits of traditional macroeconomic analyses. Each chapter is dedicated to an examination of a different factor affecting firm productivity - innovation, ICT usage, on-the-job-training, firm age, access to credit, and international linkages - highlighting the differences in firm characteristics, behaviors, and strategies. By showcasing this remarkable heterogeneity, this collection challenges regional policymakers to look beyond one-size-fits-all solutions and create balanced policy mixes tailored to distinct firm needs. This book is open access under a CC BY-NC-ND 3.0 IGO license.
This paper presents empirical evidence on the impact of competition on firm productivity. Using firm-level observations from the World Bank Enterprise Survey database, we find a positive and robust causal relationship between our proxies for competition and our measures of productivity. We also find that countries that implemented product-market reforms had a more pronounced increase in competition, and correspondingly, in productivity: the contribution to productivity growth due to competition spurred by product-market reforms is around 12-15 percent.
This paper examines the response of industries and firms to changes in trade costs. Several new firm-level models of international trade with heterogeneous firms predict that industry productivity will rise as trade costs fall due to the reallocation of activity across plants within an industry. Using disaggregated U.S. import data, we create a new measure of trade costs over time and industries. As the models predict, productivity growth is faster in industries with falling trade costs. We also find evidence supporting the major hypotheses of the heterogenous-firm models. Plants in industries with falling trade costs are more likely to die or become exporters. Existing exporters increase their shipments abroad. The results do not apply equally across all sectors but are strongest for industries most likely to be producing horizontally-differentiated tradeable goods.
My dissertation consists of three studies, all viewing aggregate productivity as driven by the individual decisions of firms and the inventors that work for them. I use microeconometric analysis to study why firms innovate and economic theory to link these decisions to macroeconomic outcomes. The first paper in this dissertation studies how German manufacturing firms adjust their productivity in response to an increase in competition from foreign markets. German firms only increase their productivity if their new competitors come from other industrialized economies. This productivity increase is not driven by innovation. Instead, firms cut input expenses and prices while maintaining their output. The second paper traces the matching decisions of firms and inventors on the labor markets of developed economies. It adapts empirical techniques used in labor economics to this special segment of the labor market and shows that assortative matching has been increasing from 1974 to 2012: High quality inventors go to high quality firms more often than was the case in previous decades. This cannot be explained by changes in the patent invention function: The productivity of a match between a firm and an inventor of constant quality remains roughly unchanged. The third paper develops an endogenous growth model with inventor labor markets and two types of innovation: disruptive inventions that change the underlying technology of firms’ products and incremental improvements over existing products. Firms acquire expertise in certain technologies by hiring the inventors who are experts in these fields. This gives them a strong incentive to prevent disruptive inventions: If the underlying technology changes, their investment in these inventors becomes worthless. Large firms inhibit aggregate growth by poaching inventors from firms engaged in disruptive innovation.
