Measuring and testing change in strategic management research

This paper reviews some critical issues associated with measuring and testing change and then reports on how strategy researchers have addressed those matters. We first discuss three key methodological requirements: reliability assumptions of change variables, correlations between the change variable and its initial measure, and selection of unbiased measurement alternatives. Next, we present data from a content analysis of 126 change studies which suggest that strategy researchers tend not to recognize those requirements. Indeed, the typical approach used to measure and test change (as a simple difference between two measures of the same variable) is usually inappropriate and could lead to inaccurate findings and flawed conclusions. We conclude by offering suggestions for how change can be studied more rigorously. Copyright © 2002 John Wiley & Sons, Ltd.     

Deterring nuclear weapons proliferation

In the wake of the dissolution of the Soviet Union and the end of the Cold War, the problem of nuclear proliferation has become one of the primary issues of strategic concern The proliferation problem is an old one, but the problem today is very different from that of even a few years ago. calling for new approaches. By considering demand and supply factors, the old approaches that rely on limits on the technology or supply appear inadequate in the current situation Rather, the best approaches today are those that influence demand, making it less attractive for nations to develop nuclear weapons. The constraints on the United States that inhibit it from using its nuclear weapons to threaten new nuclear states make both nuclear deterrence and guarantees to countries not acquiring such weapons ineffectual in preventing further proliferation. The use of conventional forces to prevent proliferation or to protect threatened nations may also be politically difficult unless there are clear national interests at stake.
A possible way out of this dilemma is to develop a system of conventional deterrence using precision guided munitions and other recent technological developments that have increased the accuracy of weapons delivery systems. Such a system of conventional deterrence could play an important role in making nuclear weapons of less perceived value to potentially proliferating nations and in protecting regions that these nations threaten.     

THE ASSOCIATION BETWEEN EXECUTIVE SUCCESSION AND DISCRETIONARY ACCOUNTING CHANGES: EARNINGS MANAGEMENT OR DIFFERENT PERSPECTIVES?

This paper investigates the association of executive changes with both income increasing and decreasing accounting changes. Two potential explanations for the hypothesis that firms with changes in CEOs are more likely to make accounting changes are examined. The earnings management explanation holds that new management intervenes in the financial reporting process in order to alter perceptions of effectiveness. The different perspectives explanation holds that managements have different tastes, perspectives, or views of the world than the predecessor. Evidence supports the different perspectives explanation.     

VOLUNTARY DISCLOSURE OF SEGMENT INFORMATION: FURTHER AUSTRALIAN EVIDENCE

This study provides further empirical evidence on incentives for Australian firms to voluntarily report segment information. Various economic reasons why firms may elect to present segment information have been hypothesised in previous research. Bradbury [1992] and McKinnon and Dalimunthe [1993] found firm size, minority interest and industry membership as significant identifiable characteristics motivating voluntary segmental disclosure. Variables found to be insignificant in Bradbury [1992] which were not examined by McKinnon and Dalimunthe [1993] are tested in this paper. Hypotheses relating to size, financial leverage, assets-in-place, earnings volatility, ownership diffusion, outside equity (minority) interest, overseas association as well as diverse and mining and oil classification hypotheses are empirically examined. Univariate tests and multivariate logit analysis suggest that for a extensive sample of diversified firms, voluntary segment disclosure is significantly related to size, leverage and involvement in mining or oil activities.