ISBN: 3790816477
TITLE: Computers and Productivity
AUTHOR: Hempell
TOC:

1 Introduction 1
2 Impacts of ICT as a general purpose technology 9
2.1 Introduction 9
2.2 General-purpose properties of ICT 12
2.3 ICT productivity and complementarities 15
2.3.1 Contributions to productivity 16
2.3.2 Complements to ICT use 22
2.3.3 A theoretical model of complementarities 25
2.4 Empirical evidence for Germany 29
2.4.1 ICT diffusion 31
2.4.2 Corporate strategies associated with ICT use 37
2.5 Conclusions 49
2.6 Appendix 51
2.6.1 Inferring complementarily from correlation 51
2.6.2 Tables 53
3 Contributions of ICT to firm productivity 57
3.1 Introduction 57
3.2 Theoretical and methodological issues 59
3.3 The scope of firm-level analyses 59
3.3.1 A model of ICT-induced quality improvements 61
3.3.2 Reference framework 64
3.3.3 Extensions 65
3.4 Data 68
3.5 Empirical results 72
3.5.1 Reference framework 72
3.5.2 Extensions 80
3.6 Conclusions 87
3.7 Appendix 89
3.7.1 GM M estimation of the Production function 89
3.7.2 Imposing common factor restrictions by minimum distance 92
3.7.3 Tables 94
4 ICT productivity and innovations 101
4.1 Introduction 101
4.2 Theoretical background 103
4.2.1 ICT and innovational complementarities 1.03
4.2.2 Innovative capabilities and the role of experience 105
4.2.3 Specifics of innovation in Services 1.08
4.2.4 Empirical model 111
4.3 Data 114
4.4 Empirical results 118
4.4.1 Results for the theoretical framework 118
4.4.2 Discussion and alternative explanations 125
4.5 Conclusions 127
4.6 Appendix 129
4.6.1 Tables 129
5 ICT productivity and human capital investments 133
5.1 Introduction 133
5.2 Theoretical issues 136
5.2.1 Previous studies 136
5.2.2 Theoretical hypotheses 140
5.3 Empirical approach 141
5.3.1 Correlations in factor choice 142
5.3.2 Productive interactions 144
5.3.3 Training incentives from ICT investment? 146
5.4 Data 147
5.5 Empirical results 150
5.5.1 Correlated factor choice 151
5.5.2 Complementarities in the production function 156
5.5.3 Wage cost effects and training incentives 160
5.6 Conclusions 162
5.7 Appendix 163
5.7.1 Sample selection in logarithmic specifications 163
5.7.2 Tables and graphs 167
6 Conclusions 175
References 183
END
