Influence analysis for Poisson inverse Gaussian regression models based on the EM algorithm

For Poisson inverse Gaussian regression models, it is very complicated to obtain the influence measures based on the traditional method, because the associated likelihood function involves intractable expressions, such as the modified Bessel function. In this paper, the EM algorithm is employed as a basis to derive diagnostic measures for the models by treating them as a mixed Poisson regression with the weights from the inverse Gaussian distributions. Several diagnostic measures are obtained in both case-deletion model and local influence analysis, based on the conditional expectation of the complete-data log-likelihood function in the EM algorithm. Two numerical examples are given to illustrate the results.     

OVERBIDDING AND HETEROGENEOUS BEHAVIOR IN CONTEST EXPERIMENTS: A COMMENT ON THE ENDOWMENT EFFECT

We revisit the meta-analysis of Sheremeta on overbidding in contest experiments and focus on the effect of endowment on overbidding. Sheremeta assumes, and finds evidence of, an increasing linear relationship between endowment and overbidding, Quantal Response Equilibrium (QRE) predicts an increasing concave relationship, while Baik and colleagues find an inverted U-shaped relationship in their analysis of a single experiment. We use the same data as in Sheremeta, but employ a different econometric model which leads to support for both QRE and the inverted U-shaped relationship. Following Baik and colleagues, we posit that the inverted-U relationship may be interpreted in terms of a wealth effect.     

The contribution of Project-based-learning to high-achievers’ acquisition of technological knowledge and skills

The main goals of this study were to look after the technological knowledge construction process by high-school high-achievers, and their ability to design and implement solutions for technological problems. More specifically, we examine the contribution of Project-based-learning (PBL), as pedagogical means for supporting the students’ knowledge acquisition and problem-solving process. The findings show a significant increase in formal knowledge as measured by standardized matriculation exams; an expansion in the scope of technological knowledge acquired and implemented, and in the scope of knowledge resources utilized for the projects; a high level of overall performance as regards to the set of design skills studied; a positive change in attitude towards technology and technological studies; the emergence of consistent design styles by individuals and groups along their work in the projects.     

Australian consumer attitudes to health claim – food product compatibility for functional foods

This study with Australian consumers investigated how appealing different health claims combined with particular food carriers were to Australian consumers, and compared the results of a similar study with Dutch consumers. 149 shoppers considered up to 30 different food concepts, rating how ‘attractive’, ‘believable’, and ‘new and different’ they found each concept and their ‘intention to try’. Each variable was significantly related to intention to try (p < 0.001) and together explained 56% of the intention score. Claims and carriers independently had a significant effect on ratings of attractiveness and intention to try but, unlike the Dutch study, the carrier was a more important predictor of intention to purchase than the claim. Implications for regulation of health claims for food are discussed.     

Researching cognition and technology: how we learn across the lifespan

This article addresses how we learn technology across the lifespan. After outlining findings of research into how children, adolescents, teens and adults learn technology, we address theoretical shifts from sociocultural to technocultural theories of cognition and reorientations from mediated to cyborgenic learning. The balance of the article describes effective methods for researching cognition and technology. In the process of outlining key findings from research, we emphasize the links among methods and theories employed, data produced and conclusions drawn. Our goal is to sketch a lifelong learning context for undertaking studies of cognition and technology, and to provide a methodological and theoretical analysis for researchers venturing into this dynamic and volatile field. In summary, we provide a far-ranging agenda for researching cognition and technology.

A strategic analysis of surging Chinese manufacturers: The case of Galanz

Recent years have witnessed the surging of Chinese manufacturers, as China has become the world’s factory floor. This paper presents a case study of one of the most successful manufacturers in China, the Galanz Group, now the world’s largest microwave manufacturer. Based on theories of multinational corporations from emerging economies, the paper examines the process of Galanz’s integration into the global market. The company has developed unique competitive strategies that have made it a great success within China and in overseas markets. The Galanz model suggests strong strategic implications for both Chinese firms and incumbent multinational corporations.

Real options and MNE strategies in Asia Pacific

Asia Pacific offers a lot of promising growth opportunities, but it also presents high levels of uncertainty for multinational enterprises (MNEs). In this paper, we introduce real options theory as a theory of investment under uncertainty, and we discuss its implications for MNEs and their strategies with a focus on the emerging economies in Asia Pacific. We suggest that MNEs must recognize the various sources of uncertainty, as well as the various options embedded in their investments, and real options theory can help them structure and design their investments to benefit from uncertainty. In particular, MNEs need to develop the dynamic capabilities of managing real options in their investments to respond to the evolving economic and institutional environment in the region. This paper also provides several implications for policy makers in Asia Pacific to stimulate investment activities in the region and to help their firms venture successfully in the international market place.

Collusive Communication and Pricing Coordination in a Retail Gasoline Market

This paper studies how communication is used by a retail gasoline cartel in Australia to coordinate price increases, a role of communication in collusion not highlighted by Genesove and Mullin (Am Econ Rev 91(3): 379–398, 2001). A unique data set from the trial record allows for quantifying not only the pricing dynamics, but also the communication patterns. Both empirical and narrative evidence suggests the collusive communication and pricing behavior is well captured by the price cycle equilibrium of the Maskin and Tirole (Econometrica 56(3): 571–599, 1988) model.     

Attributive change in top management teams as a driver of strategic change

This study examines the role of top management team (TMT) member succession in breaking organizational inertia. We compare the impact of two types of change in TMTs—in member number and demographic heterogeneity—on subsequent strategic reorientation using data on the diversification activities of firms in the Japanese textile industry. Our findings suggest that executive succession does not trigger strategic change unless succession entails change in the values and interests of executives embedded in their demographic traits.

Europäische Klimapolitik: Zwischen Anspruch und Wirklichkeit

In order to restrict the risks of anthropogenic climate change to a ?tolerable“ extent, the fourth assessment report of the United Nations’ International Panel on Climate Change calls for a trend reversal towards globally decreasing greenhouse gas emissions within the next two decades which ultimately must lead to a reduction of carbon dioxide emissions until the mid of the century by 50 percent as compared to 2000 emission levels. The European Union claims a lead of a role in climate policy with the objective to push forward international negotiations on far-reaching emission reduction commitments with other important industrialized and developing regions. The EU’s credibility as a leading force will hinge crucially on how successfully it can fulfill its emission reduction obligations under the Kyoto Protocol by means of market-based environmental policy, in particular the exemplary operation of the EU emission trading system. Against this background, the following article provides a critical assessment of the EU’s climate policy.