Market services productivity across Europe and the US
利用欧盟KLEMS数据库分析欧美市场服务业生产率差异，发现ICT投资和人力资本对增长有贡献，但效率改进差异是主因，且电信业准入自由化有益于生产率。
Since the mid-1990s, market services have positively influenced labor productivity growth in the US, but not in most European countries. We analyze these cross-country differences in growth dynamics using industry-level measures of output, inputs, and multifactor productivity (MFP) from the new EU KLEMS database. We find that using detailed data has important implications for empirical analysis of policy influences on growth. Increased investment in information and communication technology (ICT) capital and growth in human capital contributed substantially to labor productivity growth in market services across all European countries and the US. However, countries differ most strongly in the rates of efficiency improvement in the use of inputs. We find no evidence of an externality-driven relationship between such efficiency changes and the growth of ICT use or of employment of university-educated workers. We also find that entry liberalization has been beneficial for productivity growth in telecommunications, but not in other service industries.— Robert Inklaar, Marcel P. Timmer and Bart van Ark