What's in a broken promissory obligation? Developing and testing a multiple component form measure of psychological contract breach

While the literature has suggested the possibility of breach being composed of multiple facets, no previous study has investigated this possibility empirically. This study examined the factor structure of typical component forms in order to develop a multiple component form measure of breach. Two studies were conducted. In study 1 (N = 420) multi-item measures based on causal indicators representing promissory obligations were developed for the five potential component forms (delay, magnitude, type/form, inequity and reciprocal imbalance). Exploratory factor analysis showed that the five components loaded onto one higher order factor, namely psychological contract breach suggesting that breach is composed of different aspects rather than types of breach. Confirmatory factor analysis provided further evidence for the proposed model. In addition, the model achieved high construct reliability and showed good construct, convergent, discriminant and predictive validity. Study 2 data (N = 189), used to validate study 1 results, compared the multiple-component measure with an established multiple item measure of breach (rather than a single item as in study 1) and also tested for discriminant validity with an established multiple item measure of violation. Findings replicated those in study 1. The findings have important implications for considering alternative, more comprehensive and elaborate ways of assessing breach.     

The impact of sourcing enterprise system use and work process interdependence on sourcing professionals’ job outcomes

We examine sourcing professionals’ work context to conceptualize how they use sourcing enterprise systems (SESs) and to understand when SES use results in positive/negative job outcomes. We differentiate between SES use for supplier selection and supplier governance, identify sourcing professionals’ work process interdependence as a moderator for the impacts of SES use on job satisfaction, and suggest job satisfaction mediates the impacts of SES use on job performance. We conducted a field study of sourcing professionals’ SES use at one of the largest consumer product companies in the United States, which has implemented an SES to innovate its sourcing professionals’ work processes. Based on our analysis of the survey and qualitative data we collected, we found the impacts of both types of SES use (1) to be negative on job satisfaction when work process interdependence was high, (2) to be positive on job satisfaction when work process interdependence was low, and (3) to be mediated by job satisfaction for job performance. We discuss the implications of our findings for the literature at the intersection of information systems and operations management as well as for the information technology enabled innovation of sourcing processes and, more generally, complex business processes.     

“ENTER2008”: Report on the 15th International Conference on Information Technology and Travel and Tourism, 23–25 January 2008, Innsbruck,Austria

As the world's largest annual event on information and communication technologies (ICTs) and travel and tourism, ENTER2008 was held in Innsbruck, a small medieval town in Austria. Like previous ENTER conferences, delegates were able to participate personally in the discussion of the latest research findings and industrial innovations in the context of ICTs in travel and tourism. Delegates could also enjoy the hospitality and unique experiences offered by the conference host and organizer. Different from other ENTER conference proceedings, which always had front pages in silver, ENTER2008 proceedings used an attractive and bright cover page in a good mixture of yellow and red.     

ENTER 2005 – The 12th International Conference on Information Technology and Travel & Tourism held in Innsbruck,Austria on January 26–28, 2005

With the attendance of about 400 delegates from over 40 nations in the world, the 12^th International Conference on Information Technology and Travel & Tourism (ENTER 2005) was held on January 26–28, 2005 in Innsbruck of Austria. Interestingly, the Conference was turned to a very noticeable contradiction by showing the latest findings and developments in Information and Communication Technologies (ICTs) in travel & tourism but in a medieval city. Following the tradition of the previous ENTER conferences, ENTER 2005 has successfully achieved it primary objective of providing a forum for international delegates to exchange and debate various ICT issues that were related to travel and tourism.     

Falling through the cracks: International accounting rate reform at the ITU and WTO

Heightened attention to international accounting rates at the ITU and the WTO has led some observers to conclude that carriers soon will impose cost-based termination charges. This article concludes that while accounting rates have declined on some routes, many incumbent carriers can and will delay or thwart progress. The article examines the FCC's unilateral regulatory initiative as evidence of a growing schism between governments keen on immediate progress and those that fear a ‘free fall’ in accounting rates and a quick end to settlement surpluses. The article also considers technological innovations like call-back and Internet telephony with an eye toward assesssing whether and how widespread accounting rate reductions will occur.     

Information search behavior of Hong Kong's inbound travelers‐a comparison of business and leisure travelers

Abstract

The purpose of this study is to examine the information search behavior of Hong Kong's inbound tourists, in particular business and leisure travelers. The study clearly shows that business and leisure travelers demonstrate different information search behavior. ‘Personal experience,’ ‘Travel agency/tour company,’ ‘Airlines’ and the ‘Internet’ are most frequently relied upon by business travelers in searching for travel information, while leisure travelers prefer ‘Travel agency/tour company,’ ‘Friends or relatives,’ ‘Travel guide books,’ and ‘Personal experience.’ The study also reveals that the total number of information sources used and the length of pre‐trip planning lead‐time are significantly different between these two groups of travelers. First time travelers also have a longer pre‐trip planning lead‐time than repeat travelers. Furthermore, business and leisure travelers perceive the levels of influence of several information sources, including ‘Corporate travel departments,’ ‘Friends or relatives,’ ‘Travel guide books,’ and the ‘Internet,’ differently. These information sources were classified into five different dimensions, including ‘Media,’ ‘Neutral,’ ‘Retail,’ ‘Interpersonal,’ and ‘Personal experience.’ Analysis based on travelers' purpose for traveling and demographic information was performed. Leisure travelers perceive the level of influence of ‘Neutral’ sources as significantly higher, and those with lower household incomes perceived the level of influence of ‘Personal experience’ as lower. The results of this study will allow marketers in Hong Kong to better understand travelers’ information search behavior so that they can more effectively tailor their marketing strategies to these two major markets.     

An overview of Internet-based surveys in hospitality and tourism journals

Survey research has reached an era when the Internet is commonly used as a research tool in different fields of study. Yet, the use of this method in tourism and hospitality research has not been fully explored. This study provides a state-of-the-art assessment of journal publications in the past ten years to reveal how the Internet has been incorporated into tourism and hospitality research. Various aspects of online research in tourism and hospitality are identified via reviewing relevant articles retrieved from the EBSCOhost.     

Estimating Transition Probabilities from a Time Series of Independent Cross Sections

This paper considers the implementation of a nonstationary, heterogeneous Markov model for the analysis of a binary dependent variable in a time series of independent cross sections. The model, previously considered by M offitt (1993), offers the opportunity to estimate entry and exit transition probabilities and to examine the effects of time-constant and time-varying covariates on the hazards. We show how ML estimates of the parameters can be obtained by Fisher's method-of-scoring and how to estimate both fixed and time-varying covariate effects. The model is exemplified with an analysis of the labor force participation decision of Dutch women using data from the Socio-economic Panel (SEP) study conducted in the Netherlands between 1986 and 1995. We treat the panel data as independent cross sections and compare the employment status sequences predicted by the model with the observed sequences in the panel. Some open problems concerning the application of the model are also discussed.     

Pricing Options under Generalized GARCH and Stochastic Volatility Processes

In this paper, we develop an efficient lattice algorithm to price European and American options under discrete time GARCH processes. We show that this algorithm is easily extended to price options under generalized GARCH processes, with many of the existing stochastic volatility bivariate diffusion models appearing as limiting cases. We establish one unifying algorithm that can price options under almost all existing GARCH specifications as well as under a large family of bivariate diffusions in which volatility follows its own, perhaps correlated, process.     

Thirty years of social accounting,reporting and auditing: what (if anything) have we learnt?

In an increasingly complex world with increasingly powerful organisations it seems inevitable that society – or groups in society – would become anxious about whether these organisations could be encouraged to match that power with an appropriate responsibility. This is the function of accountability – to require individuals and organisations to present an account of those actions for which society holds them – or would wish to hold them – responsible. And the history of social accounting, at its most fundamental, is a history of attempts to develop this accountability. It seems to me that the widespread and systematic practice of social and environmental accounting is a deeply essential element in any well‐functioning, complex democracy. The corollary is that the absence of such mechanisms raises fundamental questions about the nature of modern democracies. This article briefly outlines what I believe to be the three strands of social accounting. It then identifies a few of the lessons that we may be able to learn from current experience and, in particular, how social accounting is related to accountability, democracy and sustainability. The central issue of the tension between accountability and control is touched upon: I then illustrate how the stakeholder model can be used to help define the social account, and conclude with a few words on attestation.