Comment on ‘Type I error and test power of different tests for testing interaction effects in factorial experiments’

We discuss the rank transform method and particularly the hypotheses being tested. Some counter examples show that the rank transformation method is invalid in factorial designs.     

A CYCLING METHOD FOR CONSTRUCTING INPUT–OUTPUT TABLE TIME SERIES FROM INCOMPLETE DATA

There are a number of approaches for constructing time series of input–output tables. Some authors generate an initial estimate for a base year, and then serially estimate tables for subsequent years using the balanced prior-year table as an initial estimate. Others first generate a series of initial estimates for the entire period, and then balance tables in parallel. Current serial methods are affected by sudden leaps in the magnitude of table elements, which occur straight after a period of data unavailability. Current parallel methods require two complete tables for base and final years in the same classification, and therefore do not work under misaligned or incomplete data. We present a new method for constructing input–output table time series that overcomes these problems by averaging over alternate forward and backward sweeps across the time series period. We also solve the problem of hysteresis causing forecast and backcast table estimates to differ.     

Ranking Economics Journals Using Data From a National Research Evaluation Exercise

This paper describes an algorithm for creating a ranking of economics journals, using data from the 2014 UK Research Excellence Framework (REF) exercise. The ranking generated by the algorithm can be viewed as a measure of the average quality of the papers published in the journal, as judged by the REF Economics and Econometrics sub‐panel, based on the outputs submitted to the REF.     

Price differences between equity classes. Corporate control,foreign ownership or liquidity?

This paper is the first comprehensive study of price differences for dual class equity at the Oslo Stock Exchange. It analyzes the relative importance of corporate control, foreign ownership restrictions and stock market liquidity for the price differences. The Norwegian market has the peculiar feature that in part of the sample period non-voting shares were trading at a premium to voting shares, i.e., what is usually termed the “voting premium” was negative. This result can be rationalized by restrictions on foreign ownership. In the later part of the period, with no regulatory restrictions on foreign ownership, the voting premium is positive, and related to corporate governance and liquidity.     

Multiple foci of commitment in a professional service firm: balancing complex employment relations

Employees of professional service firms (PSFs) have attachments to multiple groups, which may be either compatible or conflicting: their employer, their clients and their profession. We analyse the antecedents of commitment to these three foci based on a survey of 510 employees in a large PSF in Norway. The main findings are as follows: (1) low quality of internal work relations is negatively associated with employer commitment and draws employees towards external foci of commitment – the clients and the profession; (2) role conflict is associated with stronger commitment to the client organisation and the profession; and (3) autonomy and transferability of skills are associated with stronger commitment to the profession, but does not undermine commitment to the employer. The article contributes to our understanding of the conditions under which employees identify with external groups and when commitment to the employer may be compromised. The findings have implications for how managers can help to increase the commitment of employees involved in complex employment relations.     

Imposing regional monotonicity on translog stochastic production frontiers with a simple three-step procedure

We show that the monotonicity condition is conceptually important in Stochastic Frontier Analysis (SFA). Despite its importance, most empirical studies do not impose monotonicity—probably because existing approaches are rather complex and laborious. Therefore, we propose a three-step procedure that is much simpler than existing approaches. We demonstrate how monotonicity of a translog function can be imposed regionally at a connected set (region) of input quantities. Our method can be applied not only to impose monotonicity on translog production frontiers but also to impose other restrictions on cost, distance, or profit frontiers.     

Competition in railway monopolies

The transformation of railways from monopolies to markets open for internal competition is described and explained in a theoretical framework, and a model for the evaluation of the transformation’s impact on efficiency is developed. Using the model in an empirical study of the Swedish railway sector, it is found that external competitive pressure is strong in most supply segments and, focusing on loss of scale advantages, that the transformation will result in significant costs. Comparing the potential for gains by competition against the costs, it is concluded that increased efficiency by internal competition only seems possible to achieve for two train products: domestic combined transport and dedicated trains (both freight services).     

The challenge of constructing regional advantages in peripheral areas: The case of marine biotechnology in Tromsø, Norway

The idea of constructing regional advantage (CRA) has recently been emphasized by scholars as a new way for firms to gain competitiveness in a globalizing learning economy. The rationale behind the idea is that advantages in a regional industry can be constructed by proactive public–private partnership. This article uses, and examines the relevance of, the CRA framework in analysing the development and functioning of the marine biotechnology industry in Tromsø, which is a fairly peripheral region in Norway. Despite the fact that much effort has been put into education and R&D at the University of Tromsø and related research institutes, and the fact that many public policy tools have intended to create a blooming marine biotechnology industry in the area, the results have so far been meagre. This article explains the rather weak results in terms of the number of firms and jobs in the marine biotechnology industry in Tromsø as being due to a lack of synthetic knowledge on how to industrialize research results and little spillover of market knowledge. With regard to more general theoretical lessons linked to the CRA framework, this article argues for seeing the concept of related variety in a broader industrial and geographical sense in peripheral regions.     

The Influence of Retail Management’s Use of Social Power on Corporate Ethical Values,Employee Commitment,and Performance

Recent cases in retailing reflect that ethics have a major impact on brands and performance, in turn, demonstrating that brand owners, employees, and consumers focus on ethical values. In this study, we analyze how various sources of social power affect corporate ethical values, retailer’s commitment to the retail organization, and ultimately sales and service quality. Multi-source data based on a sample of 225 retailers indicated a strong link between power, ethics, and commitment and that these affected output performance.