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The purpose of this paper is to investigate the development process of the fire whirl in the fixed-frame facility and focus on the impacts of the fire whirl’s vortex core on the formation and flame structure of the fire whirl.

The complex turbulent reacting flame surface is captured by the large eddy simulation turbulence closure coupled with two sub-grid scale (SGS) kinetic schemes (i.e. the chemistry equilibrium and steady diffusion flamelet). Numerical predictions are validated thoroughly against the measurements by Lei et al. (2015) with excellent agreements. A double maximum tangential velocity refinement approach is proposed to quantify the vortex cores’ instantaneous location and region, addressing the missing definition in other studies.

The numerical results show that the transition process of the fire whirl is dominated by the vortex core movement, which is related to the centripetal force. The unsteadiness of the fully developed fire whirl was found depending on the instantaneous fluctuation of heat release rate. The steady diffusion flamelet scheme is essential to capture the instantaneous fluctuation. Furthermore, the axial velocity inside the vortex core is the key to determining the state of fire whirl.

Due to intensive interactions between buoyant fires and ambient rotating flow, the on-set and formation of fire whirl still remain largely elusive. This paper focused on the transition process of fire whirl between different development stages. This paper provides insights into the transition process from the inclined flame to the fire whirls based on the centripetal force.

This paper presented and compared two SGS kinetic schemes to resolve the fire whirl development process and the unsteadiness of its vortical structures. The modelling framework addresses the shortcoming of previous numerical studies where RANS turbulence closure and simplified combustion kinetics was adopted. Numerical results also revealed the fire whirl transition process and its relationship to centripetal force.

Online games are popular electronic commerce platforms in which gamers use avatars to interact with others. Avatar identification (the extent to which gamers regard avatars as an extension of themselves) is known to be related to online gamer loyalty. However, few studies have examined how avatars could be designed to enhance avatar identification and online gamer loyalty, indicating a gap. Therefore, the purpose of this paper is to contextualize self-affirmation theory into online gaming contexts, identified key theoretical elements and examined how they are related to avatar identification and online gamer loyalty.

This study surveyed 1,348 massively multi-player online role-playing game players, and their responses were analyzed using structural equation modeling.

The analytical results indicate that irreplaceability within a team and avatar customization are positively related to unique avatar image, while avatar customization is positively related to positive avatar image. Moreover, avatar physical attractiveness and avatar ability to achieve are positively related to positive avatar image. Both unique and positive images of an avatar (as perceived by the user) are positively related to avatar identification, and further to online gamer loyalty.

This study proposes new constructs: irreplaceability within a team, avatar ability to achieve, unique avatar image and positive avatar image. Such new constructs provide insights to aid electronic commerce managers in avatar design, thus instilling gamer identification with avatars, and thus loyalty.

The purpose of this paper is to look inside the “black box” in corporate governance (CG) measurement, and shed some light on how to construct a transparent, reliable and valid index, considering equally both the academics and practitioners’ perspectives.

A synthesized literature review is presented and a CG index is developed combining the strengths of three different methodologies: the Delphi method, the classical test theory (CTT) and the analytic hierarchy process (AHP). This approach helps authors to break the process into separate steps and to select the appropriate techniques to support their decision regarding the norms, the criteria, the variables and the weights that someone should use to construct a CG index.

The authors’ analysis indicates that a well-designed CG index requires a combination of research methods to identify the best options to solve several methodological issues in index construction. For the application of this multi-methodology in Greece, the authors used two equal and independent samples to explore the different perspectives regarding the importance of the index criteria and sub-criteria. This process provides evidence that the opinion of academics and practitioners in Greece tend to converge. Moreover, it is found that this multi-methodology produces the highest variation in CG scores and ranking orders, as opposed to a traditional approach, in measuring CG disclosure, an important issue with econometric implications.

The limitations of this study are associated with the methods used.

This paper provides practical implications for investors and commercial vendors. For the former, it highlights the need to be more cautious and/or suspicious when they use CG ratings, meaning that they should comprehend the base of the ratings models, and for the latter, it demonstrates the importance of enhancing the transparency in CG indices construction.

The value of the paper lies in improved understanding of the methodological issues in constructing CG indices. This is quite interesting because this approach could serve as a roadmap for other researchers.

Trust has become a major issue among online shoppers. This underresearched subject will predictably determine the success or failure of e-commerce vendors. The lack of face-to-face interaction, the inability to inspect goods and services prior to purchase, and the asynchronous exchange of goods and money all contribute to the perceived risk of purchasing online and the resulting need for trust. Trust is particularly critical for small and new Internet ventures confronted by the liability of newness (Stinchcombe 1965). Lacking, among other things, a name that is readily recognized in the marketplace, entrepreneurial Internet ventures require trust if they are to succeed. The research presented in this article addresses this issue by building on the work of McKnight and colleagues and considering the effects of propensity to trust on trusting beliefs. Specifically, the author predicts that propensity to trust will significantly affect perceived ability, benevolence, and integrity but only for those individuals with limited direct experience. Based on a sample of web survey participants, the author found that propensity to trust significantly impacted perceived ability and benevolence for individuals with limited direct experience only. No statistically significant results were found for the effects of propensity to trust on perceived integrity.

The purpose of this paper is to apply Maslow's hierarchy of needs to extend the expectation‐confirmation model of information systems continuance (ECM‐IS) to analyze users' continuance intention of social networking services (SNSs).

A survey is conducted on 202 users of social networking services in China.

Fulfillment of self‐actualization needs has a significant impact on continuance intention; however, the direct impact of fulfillment of social needs on continuance intention is not significant but fully mediated by satisfaction.

The first limitation is that the participants in the sample are undergraduates. Second, this study has used cross‐sectional survey data to empirically test the model. Third, the survey is conducted in a single country.

The results of this paper provide several marketing implications to better manage SNSs. First, SNS managers should enhance instant communication functions, develop a platform that is convenient for users to express themselves and provide more entertainment functions. Second, SNS managers should focus on users' expectations and experiences about website functions and adjust or update website functions accordingly.

This paper contributes to the research on continuance intention of social networking services from the perspective of Maslow's hierarchy of needs to capture motivations of continuance intention. The authors believe their conceptualizations of fulfillment of self‐actualization needs and fulfillment of social needs, as well as their substantial findings, would be useful to researchers and practitioners alike to better study and manage continuance intention of socially‐oriented online services.

We study the relationship between underwriter prestige, family control, and IPO underpricing in an international setting. Data are collected for 5,789 firms that went public across twenty‐five countries between 1995 and 2002. We find that non‐penny‐stock and non‐U.S. IPOs from countries where firms are predominately family‐controlled benefit from associations with well‐known investment bankers; i.e., these firms are less underpriced than similar firms from countries with a low level of family control. At the same time, our findings support prior evidence that suggests that underwriter prestige is positively related to underpricing in the U.S. IPO market. Family‐controlled firms should consider the findings of this study, which identifies factors that are associated with more successful IPO outcomes.

A construction project typically involves many participants such as owners, consultants, contractors, subcontractors and suppliers. It is important for them to have harmonious relationships so that the project can be completed expeditiously. Trust is a critical factor to maintain harmonious relationships. The purpose of this paper is to investigate the ingredients to bring about trust in construction project teams in Vietnam. The specific objectives were to investigate the existence of personal trust, explore relationship between trust and project outcomes, and identify attributes that help to improve trust.

This research employed questionnaire survey as the research method and collected data via face‐to‐face and e‐mail interviews. The sample comprised randomly selected construction practitioners in Vietnam. Data were analyzed using the SPSS software.

The results showed that trust exists between members of construction project team members in Vietnam. It was found that trust can leverage project quality and client satisfaction. In this regard, a number of factors were found to be significantly important to the development of trust.

The sample size was relatively small.

When operating in Vietnam, practitioners should adopt a long‐term mindset so as to develop trust. They should also select partners who have good reputations as these are more trustworthy.

This study contributes to knowledge by showing that trust exists between individuals participating in construction projects in Vietnam and it leads to higher output quality and client satisfaction. Unique attributes to increase trust in Vietnam were also uncovered.

The purpose of this paper is to examine the effect of related party transactions (RPTs) and types of RPTs (complex, simple and loan) on earnings quality in four East Asian countries: Hong Kong, Malaysia, Singapore and Thailand.

RPTs and types of RPTs are measured using two approaches, magnitude and abnormal (magnitude change). Earnings quality is measured using proxies for accrual earnings management and identified as discretionary accruals (DAC) and performance matched discretional accruals (PMDAC).

The results suggest that firms in these countries experience poor earnings quality when they are engaged in RPT. The effect of RPT-simple on earnings quality is more severe than RPT-complex. However, the presence of higher investor protection and stricter enforcement of regulations in countries like Singapore and Hong Kong reduce the negative impact of RPTs on earnings quality.

The results support the argument that the presence of controlling shareholders in East Asia is likely to lead to engagement with RPTs, which will increase the likelihood of firms’ earnings manipulation via DAC. This study has two limitations. It only focuses on Hong Kong, Malaysia, Singapore and Thailand, and the results may not be generalizable to other countries. Second, this study only measures the magnitude and abnormal RPTs based on the disclosures available in annual reports.

This paper contributes to the literature by examining the effect of RPTs and types of RPTs on earnings quality in four selected East Asian countries. 

The purpose of this paper is to investigate self-perceived age among Baby Boomers in the UK, Germany, Japan, and Hungary, and identifies two horizontal segments based on the way consumers view their age.

Questionnaires were used to sample 880 Baby Boomers. Structural equation modeling is used to investigate multinational measurement invariance of the cognitive age scale.

Two distinct segments are identified, providing support for a young-at-heart consumer culture in all nations in the study. Results also find cognitive age to exhibit partial measurement invariance, which is expected given the disparate nations under study.

This research contributes to cross-cultural global age research which is still in an early pioneering stage. The study builds on a small number of previous studies that validate cognitive age, extends current knowledge of the measurement properties of cognitive age, and identifies two distinct international segments of Baby Boomers. Further research needs to delve into the antecedents of self-perceived age, particularly in the ways in which different life experiences and cultures may impact age identities.

The study has implications for marketing managers wishing to target the increasingly important young-at-heart Baby Boomer.

The study uses four non-American countries, uses samples matched for chronological age, and does not use convenience samples, which make it unique in the cognitive age literature. The study has value for marketing managers, global age researchers, and consumer culture researchers.

After the collapse of the Bretton Woods fixed exchange rate system in 1971, countries moved towards floating exchange rates, and the expectation was that the requirement for foreign reserves would decrease. However, central banks currently hold more foreign exchange reserves to enhance the credibility of exchange rate policies. The demand for gold, which was the main reserve asset prior the collapse of the Bretton Woods system, has increased as a reserve asset once again following the global financial crisis (GFC) of 2008, given gold’s characteristics as a safe haven asset and a store of value. This study aims to analyse official reserves of four countries, namely, Malaysia, Turkey, KSA and Pakistan. The Black–Litterman model was used to build a new strategic portfolio with optimal allocation to gold. This study shows that all countries under the analyses should increase their gold holdings to preserve the value of the portfolio during times of financial turmoil.

The Black–Litterman model has been used to build a new strategic portfolio with optimal allocation to gold. The study shows that all countries in our analyses suggested increasing their gold holdings to preserve the value of the portfolio during times of financial turmoil.

The study found that countries under the analyses, namely, Turkey, Malaysia, KSA and Pakistan, suggested increasing their official gold holding given the outstanding performance of gold during the GFC.

Research can be further extended by including few more countries from Organisation of Islamic Cooperation such as Qatar and Indonesia.

Emerging economies such as China, India and Russia started to sharply increase their official gold holdings in the aftermath of the GFC. According to recent statistics, central banks of China and Russia have been adding to their gold reserves. Of note, only in few European countries and in the USA, is the share of gold in foreign reserves more than 50%. In the rest of the world, this figure is about 3-5%. The paper elaborates the aforementioned subject and suggests the strategic weight of gold reserve for each country under analysis.