This study revisits the impact of IT innovation on firm performance using the Information Week 500 databases and tests the robustness of innovation theory. Using the most recent dataset, this study not only compares performance of IT innovators with average industry performance but also compares it with a firm in the same industry and of similar size. It also compares performance of IT innovato...

In this paper, we investigated the use of seasonal autoregressive integrated moving average (SARIMA) time series models for fault detection in semiconductor etch equipment data. The derivative dynamic time warping algorithm was employed for the synchronization of data. The models were generated using a set of data from healthy runs, and the established models were compared with the experimental...

The extent of band s-convergence of average labor productivity across manufacturing industries in 18 OECD countries over the period 1972–1992 shows large inter-industry differences. One reason for these differences is knowledge and capital barriers preventing the occurrence of catch-up. We find the level of average labor productivity, as a proxy for these barriers, is correlated with the extent...

Customer churn has been stated as one of the main reasons of profitability losses in the telecommunications industry. As such, it seems critical to have an a priori knowledge about the risk of a given customer to churn at any moment, in order to take preventive measures to avoid the defection of potentially profitable customers. This study intends to develop a duration model of the residential ...

The US dairy industry has realized tremendous improvements in efficiencies and milk production since the 1940s. During this time, farm and total cow numbers have decreased and average herd size has increased. This intensification, combined with the shift to a largely urban public, has resulted in increased scrutiny of the dairy industry by social and environmental movements and increased concer...

In an industry with upstream economies of scale in the distribution of differentiated products to retailers which have monopoly power within separate local market areas, the retailers have an incentive to exert monopsony power due to the divergence between average and marginal costs in the distribution of those inputs. The retailers increase their ability to exert monopsony power by forming coa...

This paper analyzes the cost efficiency and optimal scale of the electricity distribution industry in Taiwan. Due to the substantial difference in network density, firms may differ widely in production technology. We employ the stochastic metafrontier approach to estimate the cost efficiency of 24 distribution units during the period of 1997 and 2002. Empirical results find that the average cos...