A regression model of the heteroscedastic error variance

We introduce a regression model of the heteroscedastic error variance. A repetitive use of the least squares method is shown to provide the best linear unbiased estimator of the parameter vector of the model.     

Ubiquitous computing and its effects on small businesses

Much of the previous literature on ubiquitous computing (UbiComp) has been limited to case studies, reporting innovative practices of specific technologies (e.g., RFID) and social issues. There is a general paucity of research on strategic application of UbiComp, especially to small businesses. To address this issue, this study provides a broad overview of the current practices of UbiComp in leading countries and presents possible future directions. Then, the effects of UbiComp on small businesses are discussed. Through a cross-national comparative analysis, we present four strategies to provide some guidance to the countries that are currently considering entering into the UbiComp race.     

Affective and continuance commitment and their relations with deviant workplace behaviors in Korea

This study examined the nature of the relations between affective and continuance components of organizational commitment (Meyer & Allen, 1991, Human Resource Management Review, 1: 61–89) and deviant workplace behaviors (DWB; Bennett & Robinson, 2003) in a sample of 120 Korean employees and their supervisors. As expected, we found that affective commitment was negatively related, and continuance commitment was positively, albeit modestly, related to supervisor ratings of DWB. Implications for the theory and practice are discussed.     

INVESTIGATING DIFFERENCES IN ANTECEDENTS TO VALUE BETWEEN FIRST‐TIME AND REPEAT FESTIVAL‐GOERS

This study aimed to capture the underlying quality dimensions (value antecedents) that distinguish between first‐timers and repeaters and that cultivate festival loyalty. Structural relationships were analyzed across the quality dimensions, value, and loyalty for first‐time and repeat visitors. Structural equation modeling revealed that program and convenient facilities alone were antecedents to value for repeaters, whereas food and souvenir, as well as program and convenient facilities, were value antecedents for first‐timers. Specifically, repeat visitors showed stronger relationships on program value and convenient facility value than did first‐time visitors. On the other hand, first‐time visitors associated more strongly with relationships on food value and souvenir value than did repeat visitors. This distinction resulted in a stronger value‐loyalty relationship for repeat visitors than for first‐time visitors. These findings contribute to the understanding of festival‐attendee behavior and thus, provide researchers and practitioners with insights into how to design a festival in such a way that promotes repeat visitors.     

The Moderating Role of Gender Identity in Responses to Comedic Violence Advertising

Comedic violence advertising has been increasing in the United States, but many studies thus far have been content analytic in nature. To gain a better understanding of who will find comedic violence ads humorous and thus have favorable brand perceptions, two experimental studies were conducted with gender identity as an influential factor. In Study 1, masculine individuals responded more favorably to highly violent and humorous ads than feminine individuals did. Study 2 varied the violence level in the comedic violence ads and found that when violence was low both masculine and feminine individuals responded similarly to the comedic violence ad, but when violence was high masculine individuals responded more favorably than did feminine individuals. Perceived humor was found to be an important mediator of comedic violence ad processing. Theoretical and practical implications of the findings are provided.     

Effect of Restaurant Patrons' Regret and Disappointment on Dissatisfaction and Behavioral Intention

The objective of this study is to investigate the relationship among regret/disappointment, dissatisfaction, and behavioral intention in service failure situations at a restaurant. Even though there is a consensus regarding the positive relationship between regret/disappointment and customer dissatisfaction, unclear results still exist regarding the relationship between regret/disappointment and different types of behavioral intention. Thus, the present study attempts to clarify these fuzzy relationships. Specifically, this study aims to enhance understanding of the influence of regret and disappointment on behavioral intention (switching/negative WOM). The findings suggest that both regret and disappointment are significant determinants of customer dissatisfaction and switching/negative WOM. Further, the study results indicate that regret is an important predictor of switching intention, whereas disappointment is an important determinant of negative WOM. Finally, based on these findings, managerial implications for restaurant managers are discussed.     

Reverse Price Discrimination with Bayesian Buyers

This paper studies price discrimination under the situation in which buyers' prior valuations are initially observable by a seller but buyers receive further information about a product or service which remains private thereafter. The buyers interpret new information via Bayes' rule. We show that, in this environment, prices are not monotone in buyers' prior valuations. Interestingly, this results in the possibility that a seller intentionally offers a higher price to a low valuation buyer rather than a high valuation buyer (Reverse Price Discrimination). We derive this result in both monopoly and duopoly markets.     

Is high real interest rate persistence an intrinsic characteristic of industrialized economies?

Recent empirical findings show that post-war real interest rates are quite persistent and that they also contain a large number of structural changes in their means. In this study, we also find concurring results for real interest rates from thirteen industrialized countries. We show, however, that when the presence of various nonstationarities such as changing means is accommodated, some of the real interest rates exhibit substantially lower persistence or even become I(0). Our findings indicate that high real interest rate persistence is not necessarily an intrinsic characteristic of industrialized economies.     

On the development and application of a self–organizing feature map–based patent map

Recently, the range of R&D management has expanded to include management of technological assets such as technology information, product/process data, and patents. Among others, patent map (PM) has been paid increasing attention by both practitioners and researchers alike in R&D management. However, the limitation of conventional PM has been recognized, as the size of patent database becomes voluminous and the relationship among attributes becomes complex. Thus, more sophisticated data–mining tools are required to make full use of potential information from patent databases. In this paper, we propose an exploratory process of developing a self–organizing feature map (SOFM)–based PM that visualizes the complex relationship among patents and the dynamic pattern of technological advancement. The utility of SOFM, vis–à–vis other tools, is highlighted as the size and complexity of the database increase since it can reduce the amount of data by clustering and visualize the reduced data onto a lower–dimensional display simultaneously. Specifically, three types of PM, technology vacuum map, claim point map, technology portfolio map, are suggested. The proposed maps may be used in monitoring technological change, developing new products, and managing intellectual property.