The Coevolution of Relationship Dominant Logic and Supply Risk Mitigation Strategies

How and why do risk mitigation strategies evolve? And which resources are needed for engaging in such changes? This paper contributes to the understanding of risk management in supply chains by developing theory about the interplay between supply risk mitigation strategies and the purchasing team's relationship dominant logic (RDL), which we define as the purchasing team's orientation toward and shared cognitive map of the management of its supply chain relationships. Specifically, we propose that RDL and supply risk mitigation strategies are fundamentally intertwined. Following a Straussian approach to grounded theory, this study analyzes data generated from the purchasing teams of Western green‐tech firms trying to mitigate supply risk for technically indispensable rare earth metals from China. Our findings from this context that is heavily shaped by state‐influenced supply chain members show that the firms chose their mitigation strategies in line with their RDL. Human capital, social capital, and financial capital seem to moderate the link between RDL and mitigation strategies. We link our findings with the strategic management literature in deriving theoretical propositions concerning these relationships.     

In the air again: frequent flyer relationship programmes and business travellers' quality of life

This research explores whether frequent flyer programmes somehow add to the quality of life of the frequent business traveller (defined in this study as business flyers who had flown round trip 26 or more times in the past 12 months). A questionnaire was mailed to subscribers of a newsletter for members of frequent air and hotel programmes. Results indicated that frequent flyer programmes contribute positively to frequent business travellers' lifestyles and to their quality of life, perhaps by countervailing some of the negative aspects of frequent business travel. Copyright © 2003 John Wiley & Sons, Ltd.     

Regulating oligopolistic industries: A generalized incentive scheme

This paper deals with the design of regulatory mechanisms for oligopolistic industries. The proposed incentive scheme consists of two parts: a subsidy depending upon a firm's contribution to an equilibrium price reduction, and a tax equal to the profit of the previous period. This mechanism is as effective in regulating oligopolies as the well-known incremental surplus subsidy scheme in a monopoly framework. The proposed scheme provides appropriate incentives to enforce competitive behavior in a Cournot oligopoly. The scheme is welfare improving even if firms collude.     

Stockholder returns and international acquisitions of financial firms: An emphasis on banking

The wealth effects for shareholders of American financial firms involved in foreign acquisitions and also the wealth effects for shareholders of U.S. target firms acquired by foreign concerns are the topics of this study. The findings indicate that stockholders of U.S. bidding financial firms (and its subset of banks) earn neither abnormal gains nor suffer abnormal losses upon the announcement of an acquisition or regulatory approval. On the other hand, stockholders of U.S. target financial firms (and its subset of banks) earn significant abnormal profits at both the announcement of the proposed acquisition and the announcement of regulatory approval of the acquisition. The wealth effects for these two samples are also compared to samples in which both parties to the acquisition are U.S. firms. The research suggests that there is no significant difference in the size of the announcement gains or losses for either stockholders of the target or bidding firms based on whether the acquisition is foreign or domestic. These findings conflict with prior research which indicates that, for firms in general, stockholders of U.S. targets earn significantly greater wealth benefits when they are acquired by foreign firms than by domestic firms. Overall, these results are consistent with a competitive market for acquisitions of financial firms in which buyers do not earn or lose at the announcement of an acquisition, and in which abnormal gains are received only by the sellers.     

On kalman filtering,posterior mode estimation and fisher scoring in dynamic exponential family regression

Summary Dynamic exponential family regression provides a framework for nonlinear regression analysis with time dependent parametersβ ₀,β ₁, …,β _t, …, dimβ _t=p. In addition to the familiar conditionally Gaussian model, it covers e.g. models for categorical or counted responses. Parameters can be estimated by extended Kalman filtering and smoothing. In this paper, further algorithms are presented. They are derived from posterior mode estimation of the whole parameter vector (β′₀, …,β′_t) by Gauss-Newton resp. Fisher scoring iterations. Factorizing the information matrix into block-bidiagonal matrices, algorithms can be given in a forward-backward recursive form where only inverses of “small”p×p-matrices occur. Approximate error covariance matrices are obtained by an inversion formula for the information matrix, which is explicit up top×p-matrices. Heinz Leo Kaufmann, my friend and coauthor for many years, died in a tragical rock climbing accident in August 1989. This paper is dedicated to his memory.     

Firm-level Intermediate Demand for Pacific Whiting Products: A Multi-attribute, Multi-sector Analysis

Variation in seafood prices resulting from differences in product characteristics are often obscured by highly aggregated data or data representing only upstream sectors. This can lead to myopic commodity-based analysis that fails to identify how changes in public and private fisheries management may impact product characteristics, market development, and long-run social benefits. Given these problems, alternative methods are needed to complement traditional demand, supply and cost-benefit analysis. Mail and personal surveys of seafood wholesalers were conducted to determine preferences for Pacific whiting products. The relative importance of fillet and headed and gutted product characteristics are determined using conjoint analyses and factorial-based market experiments. Estimation of relative profitability, probability of purchase and short-run "conditional" demand models reveal the importance of wholesaler characteristics, physical product characteristics and contractural arrangements. Marketing margins and demands for improved products are also estimated. Implications for private and public resource management are discussed.     

On existence and uniqueness of maximum likelihood estimates in quantal and ordinal response models

Summary For quantal and ordinal response models, conditions on existence and uniqueness of maximum likelhood estimates are presented. Results are derived from general results on direction sets and spaces associated with a proper concave function. If each summand of the log likelihood is in any direction either strictly concave or affine, necessary and sufficient conditions are obtained. If all cell counts are strictly positive, then it is shown that estimates always exist, and that they are unique if all parameters are identifiable. If estimates exist without being unique, results on uniquely estimable linear functions are given, paralleling corresponding results in linear regression. An extension of the maximum likelihood principle is outlined yielding similar results even if the likelihood does not attain its supremum. The logit model, the linear probability model, cumulative and sequential models and binomial response models are considered in detail.     

Structural breaks in Austrian foreign trade with Eastern Europe during the early 1970s

Between 1955 and 1987, Austrian trade with Eastern Europe was characterized by specific factors. On the one hand, trade flows were influenced by the central planning system in Eastern Europe. On the other hand, Austria applied non-standard policy tools to manage Eastern trade. Furthermore, Austrian trade with Eastern Europe was affected by the implementation of the free trade agreement with the European Communities (EC) and the change in the institutional framework for Eastern trade in the early 1970s. Austrian Eastern exports were fostered by increased export subsidies and barter trade. We assess the net effects of these contradictory measures of trade policy by estimating aggregate import and export equations and testing for a structural break in 1973. Our results are consistent with the view that Austria subsidized Eastern exports to pursue a countercyclical policy after 1973.

A framework for selection of strategy for management of security measures

In this paper, we present and discuss a framework for security risk management, focusing on the selection of a management strategy for decision-making on security measures in particular. The framework provides guidance on the selection of a suitable type of management strategy for various types of decision-making contexts. An Information and Communication Technology case study is used to illustrate the practical implications of the framework.     

Cost Inefficiency and the Holding of Non-traditional Assets by Solvent Stock Thrifts

In contrast to greater restrictions on thrifts' non-traditional assets under FIRREA, Congress is considering new legislation forcing thrifts to convert to banks. Hence, the efficiency implications of product diversification for thrifts is an important issue. We examine the relation between thrifts' movement into non-traditional assets and the operating inefficiency of adequately capitalized stock thrifts in 1988 and 1994. We estimate inefficiency scores for individual thrifts for each year using a stochastic cost-frontier methodology. In a second step, we regress these scores against measures for movement into non-traditional assets. We find a significant fall in inefficiency with a rise in holdings of both traditional and non-traditional assets. Our results suggest that greater diversification privileges for thrifts should be beneficial to the health of the industry.