ICT Adoption and Heterogeneity in Production Technologies: Evidence for Chilean Retailers
Oxford Bulletin of Economics and Statistics,
The adoption of information and communication technology (ICT) can have far-reaching effects on the nature of production technologies. Because ICT adoption is incomplete, especially in developing countries, different groups of firms will have different production technologies. We estimate a latent class stochastic frontier model, which allows us to test for the existence of multiple production technologies across firms and consider the associated implications for efficiency measures. We use a unique data set of Chilean retailers, which includes detailed information on ICT adoption. We find three distinct production technologies. The probability of membership in a more productive group is positively related to ICT use.
Betriebsräte und betriebliche Produktivität
Employee participation via works councils is at the heart of the industrial relations in Germany. Despite considerable research, there is still no consensus on the effect works councils exert on establishment productivity. I estimate the statistical relationship between works council existence and establishment productivity using the most recent information from the IAB establishment panel and find that works council existence is related with a nine percent higher productivity. Based on the results of earlier studies, it is argued that the productivity effect of works councils exceeds the estimated statistical relationship.
Capital Stock Approximation using Firm Level Panel Data: A Modified Perpetual Inventory Approach
Jahrbücher für Nationalökonomie und Statistik,
Many recent studies exploring conditional factor demand or factor substitution issues use firm level panel data. A considerable number of establishment panels contains no direct information on the capital input, necessary for production or cost function estimation. Incorrect measurement of capital leads to biased estimates and casts doubt on any inference on output elasticities or input substitution properties. The perpetual inventory approach, commonly used for long panels, is a method that attenuates these problems. In this paper a modified perpetual inventory approach is proposed. This method provides more reliable measures for capital input when short firm panels are used and no direct information on capital input is available. The empirical results based on a replication study of Addison et al. (2006) support the conclusion that modified perpetual inventory is superior to previous attempts in particular when fixed effects estimation techniques are used. The method thus makes a considerable number of recently established firm panels accessible to more sophisticated production function or factor demand analyses.
A glimpse on sectoral convergence of productivity levels
IWH Discussion Papers,
This paper examines the presence of sectoral convergence of labor productivity between 14 OECD countries. Using the OECD International Sectoral Data Base (ISDB), the paper looks at the developments within 12 distinct sectors during the period 1970-1995. The change of the coefficients of variance suggests that there is strong sectoral convergence within most service sectors while the evidence of convergence for Manufacturing as well as for Communication is rather weak. These findings are in line with most studies undertaken on this subject so far. It is concluded that economic theories at hand to explain growth and convergence (or divergence respectively) are of different importance for the sectors concerned. While models of the New Growth Theory seemed to be useful to explain growth mechanisms within Manufacturing and Communication, traditional models seemed to apply to most other sectors.