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| Title: | | What's Spurious, What's Real? Measuring the Productivity Impacts of ICT at the Firm-Level  |
| Authors: | | Hempell, Thomas |
| Issue Date: | | 2002 |
| Series/Report no.: | | ZEW Discussion Papers 02-42 |
| Abstract: | | In order to assess the productivity effects of information and communication technologies (ICT), regressions based on cross?sectional firm?level data may yield unreliable results for the commonly employed production function framework. In this paper, various estimation biases and econometric strategies to overcome their sources are discussed. The effects are illustrated on the basis of a representative set of panel data for German service firms. The application of a suited SYS?GMM estimator yields evidence for significant productivity effects of ICT which are substantially smaller though than those suggested by cross?section or pooled OLS estimates. |
| Subjects: | | Productivity Information and Communication Technologies Production Function Estimation Panel Data Services |
| JEL: | | D24 C23 C81 L80 |
| Document Type: | | Working Paper |
| Appears in Collections: | | Publikationen von Forscherinnen und Forschern des ZEW ZEW Discussion Papers
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| dp0242.pdf | | 361.82 kB | Adobe PDF |
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