Exports and Productivity Growth – First Evidence from a Continuous Treatment Approach


Fryges, Helmut ; Wagner, Joachim


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URL: http://ub-madoc.bib.uni-mannheim.de/1512
URN: urn:nbn:de:bsz:180-madoc-15129
Document Type: Working paper
Year of publication: 2007
Publication language: English
Institution: Sonstige Einrichtungen > ZEW - Leibniz-Zentrum für Europäische Wirtschaftsforschung
MADOC publication series: Veröffentlichungen des ZEW (Leibniz-Zentrum für Europäische Wirtschaftsforschung) > ZEW Discussion Papers
Subject: 330 Economics
Subject headings (SWD): Exportgeschäft , Arbeitsproduktivität , Deutschland , Absatzschwankung
Keywords (English): Export-sales ratio , labour productivity , continuous treatment , dose-response function
Abstract: A recent survey of 54 micro-econometric studies reveals that exporting firms are more productive than non-exporters. On the other hand, previous empirical studies show that exporting does not necessarily improve productivity. One possible reason for this result is that most previous studies are restricted to analysing the relationship between a firm’s export status and the growth of its labour productivity, using the firms’ export status as a binary treatment variable and comparing the performance of exporting and non-exporting firms. In this paper, we apply the newly developed generalised propensity score (GPS) methodology that allows for continuous treatment, that is, different levels of the firms’ export activities. Using the GPS method and a large panel data set for German manufacturing firms, we estimate the relationship between a firm’s export-sales ratio and its labour productivity growth rate. We find that there is a causal effect of firms’ export activities on labour productivity growth. However, exporting improves labour productivity growth only within a sub-interval of the range of firms’ export-sales ratios.
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Das Dokument wird vom Publikationsserver der Universitätsbibliothek Mannheim bereitgestellt.




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Fryges, Helmut ; Wagner, Joachim (2007) Exports and Productivity Growth – First Evidence from a Continuous Treatment Approach. Open Access [Working paper]
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