Measuring market distortion: international comparisons,policy and competitiveness

This paper develops a framework to simultaneously estimate production possibility frontiers and measure distortions in factor and product markets. The econometric results, based on a panel of 61 countries over the period 1970 through 1985, reveal very little distortion in factor markets but considerable distortion in product markets. In addition, the distortions tend to vary with the cyclical behaviour of economic activity. Further, the results suggest that in order to improve efficiency, commercial policy should aim at reducing product-market distortions rather than factor-market ones.     

The Diffusion of Heterodox Economics

Heterodox economics is in part defined by exclusion from orthodox circles and there is an understandable tendency for heterodox economists to engage primarily with each other outside these circles. Yet the critique offered by heterodoxy speaks more widely. This study examines the diffusion of heterodox economic ideas beyond the immediate confines via an analysis of the citation of heterodox economic journals by other journals. The diffusion of heterodox economics across wider disciplines is traced utilizing data from Emerald, Wiley, and Sage bibliographic databases. Employing the techniques of social network analysis, key journals in the diffusion process are identified, with implications for heterodox economics publishing strategy and engagement in valuation processes.     

What’s in a Credo? A Critique of the Academy of Management’s Code of Ethical Conduct and Code of Ethics

The Academy of Management formally adopted a Code of Ethical Conduct in 1990. During the subsequent 15 years, almost nothing had been published about it and its value as a formal document meant to guide professional practice. Rather surprisingly then, in December 2005 an entirely new Code of Ethics was introduced by the Academy’s Board, to take effect in February 2006. Why was a new code promulgated? More broadly, what do the contents of these codes, the processes of their promulgation, and their expressed purposes, suggest about the value of such codes for similarly situated professional associations, in general? This article seeks to identify key strengths and weaknesses of the original code, begin an assessment of the potential value of the new code, and so stimulate debate. Further, not only is this a call to the members of the Academy to engage in some thoughtful debate and possible amendment of its new code, but also a caution to all such associations to take seriously the hurdles that must be jumped before any code can be developed and promulgated to worthwhile effect.     

Landscape Sensitivity and Tourism Development

The paper argues that carrying capacity is not the most effective way to analyse the relationship between the 'natural' environment and tourism pressure. Rather that concepts embedded within geomorphology, namely 'lag time', 'environmental thresholds' and 'dynamic metastable equilibrium' may provide a better approach to examine feedback between tourism and the environment. This could also provide the conceptual framework for the integration of the natural and social sciences in the study of tourism impacts, and the mechanism for truly sustainable development. The paper contends that the identification and management of threshold events and the use of base-line data on time scales of 10² to 10³ years should be at the centre of the decision-making process. The paper warns against the use of 'limits of acceptable change' as a way of managing the interplay between tourism and the environment. The relationship between shoreline management and tourism development is used to illustrate the arguments presented.     

Building Societies and Strategic Sourcing: Criteria and Dynamics

In the literature of strategic management outsourcing has become recognised as a means to achieve a range of strategic benefits. This article examines the criteria employed by building societies to select and evaluate opportunities for outsourcing. The societies’ sourcing decisions are subject to multiple criteria that, together with a conservative culture, act to limit the use of outsourcing. Case material is used to develop a model of sourcing that relates the processes of evaluation, review and learning to changes in the technological, legal and market environment. Changes in the environment require the societies to retain the ability to monitor; review and possibly reverse sourcing decisions.     

Investment in organization capital

We study a firm’s investment in organization capital by analyzing a dynamic model of language development and intrafirm communication. We show that firms with richer internal language (i.e., more organization capital) have lower employee turnover, and higher diversity in skill and wages among incumbents who are promoted from within the firm. Our results also suggest that firms in rapidly changing industries are less likely to invest in organization capital, and are more likely to have high managerial turnover. Finally, our model shows that employment protection regulations lead to more investment in organization capital but less innovation.     

The explanatory power of trading volume and insider activity in a pari-mutuel betting market

In this paper, we examine the role played by the holders of privileged information (insiders) in stimulating trading volume which adds explanatory power to a price-based model of returns in a market where the actions of insiders can be isolated – a pari-mutuel betting market. We conduct conditional logit analyses based on data relating to 19,164 horses running in 2078 races (49 racetracks) staged across the UK between 1 June and 31 August 1996. These analyses indicate that prices generally fail to incorporate fully information contained in trading volumes. However, the betting public fully discounts volume information in markets most commonly viewed as attracting bets from insiders. Isolation of the actual degree of insider activity sheds light on the variation in volume effects.     

Bayesian averaging,prediction and nonnested model selection

This paper studies the asymptotic relationship between Bayesian model averaging and post-selection frequentist predictors in both nested and nonnested models. We derive conditions under which their difference is of a smaller order of magnitude than the inverse of the square root of the sample size in large samples. This result depends crucially on the relation between posterior odds and frequentist model selection criteria. Weak conditions are given under which consistent model selection is feasible, regardless of whether models are nested or nonnested and regardless of whether models are correctly specified or not, in the sense that they select the best model with the least number of parameters with probability converging to 1. Under these conditions, Bayesian posterior odds and BICs are consistent for selecting among nested models, but are not consistent for selecting among nonnested models and possibly overlapping models. These findings have important bearing for applied researchers who are frequent users of model selection tools for empirical investigation of model predictions.