The Power of Social Network Construction and Analysis for Knowledge Discovery in the Medical Referral Process

The social network model is powerful enough to provide for the analysis and study of a variety of application domains from daily life, including health care and health informatics. After the widespread appearance of automated tools capable of deriving and analyzing social networks, social network analysis (SNA) and mining in the health care domain has recently received considerable attention for its key role in understanding how various bodies within the health care system form communities and how they are socially connected with each other. This understanding helps enhance the organizational structures and process flows, among others. In this article, we show how SNA techniques can solve issues in the medical referral system in the Canadian health care system and the like, by analyzing the social network of general practitioners (GPs) and specialists (SPs). One of the main targets is to optimize the communication between GPs and SPs with hopes of decreasing the waiting time of patients to be seen by SPs. Various SNA and mining techniques are described and analyzed, backed by reporting some experimental results.     

Survival of Japanese subsidiaries in the Middle East and North Africa

This paper considers factors affecting survival of foreign subsidiaries in the context of Japanese foreign equity ventures in the Middle East and North Africa (MENA). Three new institutional variables, economic distance, economic freedom distance and subsidiary density, are examined as determinants of survival while controlling for other determinants previously established in the literature. The findings support our hypotheses. We found that economic distance and economic freedom distance exhibit significant positive and negative relationships respectively with the survival of Japanese FDI in the MENA region, and moderate positive relationship between subsidiary density and subsidiary survival.     

A cyclical model of exchange rate volatility

In this paper, we investigate the long run dynamics of the intraday range of the GBP/USD, JPY/USD and CHF/USD exchange rates. We use a non-parametric filter to extract the low frequency component of the intraday range, and model the cyclical deviation of the range from the long run trend as a stationary autoregressive process. We use the cyclical volatility model to generate out-of-sample forecasts of exchange rate volatility for horizons of up to 1 year under the assumption that the long run trend is fully persistent. As a benchmark, we compare the forecasts of the cyclical volatility model with those of the range-based EGARCH and FIEGARCH models of Brandt and Jones (2006). Not only does the cyclical volatility model provide a very substantial computational advantage over the EGARCH and FIEGARCH models, but it also offers an improvement in out-of-sample forecast performance.     

Accurately Identifying and Comparing Sustainable Tourists,Nature-Based Tourists,and Ecotourists on the Basis of Their Environmental Concerns

The current study, using a confirmatory factor analysis, developed a multi-item scale consisting of 3 dimensions that exhibited necessary reliability and validity. Based on this Nature-Based, Eco- and Sustainable Tourists (NES)-scale, and by utilizing a cluster analysis, the study identifies 4 distinct segments among a sample of the Norwegian population: nature-based tourists, ecotourists, sustainable tourists, and mass tourists. The analysis shows that while the ecotourists make up the largest segment, the mass tourists represent the smallest segment. Using Analysis of Variance (ANOVA), the resulting 4 segments are later compared on the basis of their environmental concerns. The findings suggest that the ecotourists are the most environmentally concerned whereas the mass tourists are the least environmentally concerned. Finally, based upon the overall findings of the study, a new inductive model is developed. This model highlights the interaction between different types of alternative tourists and mass tourists, by showing, inter alia, that nature-based tourism has over the years become a form of mass tourism. Theoretical and practical implications of the study are also discussed.     

A Comparison of Slack Resources in High and Low Performing British Companies

Theory predicts that slack resources provide the means for achieving flexibility in developing strategy options. The outcome of generating and investing slack resources to achieve flexibility should be improved company performance. There is also a prediction that low performing companies are likely to have lower levels of slack than high performing companies, and therefore are likely to have less potential for achieving flexibility to impact on performance. However, as the literature features several inadequacies a comparative study of high and low performing British companies was carried out to address these inadequacies. While multiple measures of slack were found to be predictors of company performance in high performing companies, they seemingly have negligible impact on performance in low performing companies. Also, only certain types of slack resources are seemingly more prominent in high performers than in low performers. The results provide a development and refinement of the previous limited knowledge about slack resources.     

Beneficial collusion in corruption control: The case of nonmonetary penalties

We analyze a corruption model where a principal seeks to control an agent's corruption by supplementing a costless noncollusive outside detector such as the media with a collusive internal supervisor. The principal's objective is to minimize the overall costs, made up of enforcement costs and social costs of corruption. If the penalties on the corrupt agent and a failing supervisor are nonmonetary in nature and yet the two parties can engage in monetary side-transfers, the principal may stand to benefit by allowing supervisor–agent collusion. This benefit may even prompt the principal to actively encourage collusion by hiring a dishonest supervisor in strict preference over an honest supervisor.     

HRMization in Turkey: expanding the rhetoric-reality debate in space and time

Building on the debate in HRM literature which asserts that rhetorics and realities about HRM diverge, the concept of HRMization is developed to make sense of complex processes that tend to happen when the HRM label travels in space and time. Subsequently, some of the interesting dynamics of the HRMization process, as it has taken place in the Turkish context, are explored by means of a large sample of extensive textual analyses and in-depth interviews. The findings indicate that HRMization has not just taken place at the rhetorical level, but has also meant changes at the activity level for professionals and other organizational members. Local rhetorics of HRM are found to be affected by the debates on the nature of HRM in the European context and tend to decouple, in some aspects, from activities that are conducted under the HRM label. Moreover, being a ‘receptive country’, Turkish experience also reveals differential adoption patterns for diverse organizational structures as these structures have varying degrees of access to inflowing state-of-the-art HRM ideas.     

Estimation of food demand in Turkey: method of an almost ideal demand system

In this study, data of the household income and consumption expenditure surveys conducted by the Turkish Statistical Institute for 1994 and 2003 years were used; income, price, and cross price elasticities under six aggregated product groups were estimated within the framework of the an almost ideal demand system approach for food expenditures; and estimation of household consumers’ food demand in Turkey was analyzed. According to the findings obtained, it was established that a price-bound change would appear in the food demand, and elasticities were calculated. Expenditures by product groups and price elasticities were obtained, and the product groups were aggregated as bread and cereals; meat, fish, and poultry; milk and dairy products, oil and egg; vegetables and fruits; various fast food and alcoholic and non-alcoholic beverages.     

The effect of job resourcefulness on role stress,emotional exhaustion and overall performance: A study of frontline bank employees

This article develops and tests a conceptual model that examines the effects of co-worker support and job resourcefulness on role stress, emotional exhaustion and job performance. The data obtained from frontline bank employees with a time lag of two weeks in Northern Cyprus were used to test these relationships. The results of structural equation modelling suggest that the partially mediated model seems to have a better fit than the fully mediated model. The results further suggest that job resourcefulness partially mediates the effect of co-worker support on role ambiguity and emotional exhaustion. However, there is no empirical support for job resourcefulness as a mediator of the impact of co-worker support on role conflict and job performance. The implications of the results are discussed and their future research directions are offered.