Energy-saving Supporting Tourism Sustainability: A Case Study of Hotel Swimming Pool Heat Pump

Based on energy-related measurements, this article evaluates the thermal performance, energy-saving, indirect emissions and financial feasibility of using heat pumps for hotel out-door swimming pools in subtropical climates. A rooftop pool of a city-centre hotel was investigated. It was found that the average coefficient of performance (COP) was around 2.0. The measured electricity consumption was 24.6 MWh and the total heat output was 49.1 MWh for the heating season studied (mid-December to the late April). Compared with conventional electric boilers and gas-fired condensing/non-condensing boilers, the total energy savings during the heating season ranged from 26.5 to 32.5 MWh. Greenhouse and noxious emissions can also be indirectly reduced by about 12,000 kg. A discounting approach was adopted to compute the net present value of fuel costs over a lifecycle of 10 years. It was found that, over a 10-year lifecycle, the energy cost could be reduced by HK$226,400 when a heat pump with an average COP of 2.0 was used instead of a conventional electric boiler. Derived from the energy cost saving over other conventional type of water heating equipment, the simple pay-back period can be about 2 years and the lowest internal rate of return can be 39%.     

When I put on my service mask: Determinants and outcomes of emotional labor among hotel service providers according to affective event theory

This article develops and tests a model of emotional labor in the hotel industry using affective event theory. A multiple-wave longitudinal analysis using data from 424 hotel service employees and their immediate supervisors reveals how work contexts (supervisory support) affect work events (interactional justice), and thereby influence the affective (negative emotions), attitudinal (job satisfaction), and behavioral (emotional labor, service quality, and voluntary turnover) reactions of hotel service employees. The results show that (1) supervisory support relates positively to supervisory interactional justice; (2) supervisory interactional justice is negatively associated with negative emotions; (3) negative emotions relate positively to surface acting and negatively to deep acting; (4) surface acting leads to lower job satisfaction, whereas deep acting leads to higher job satisfaction; and (5) job satisfaction leads to higher service quality and lower turnover. The implications suggest important recommendations for hotel managers.     

Valuation of Discrete Dynamic Fund Protection Under Lévy Processes

Abstract

This paper investigates the valuation of discrete dynamic fund protection (DFP) under Levy processes. Specifically, the analytical solution of discrete DFP under Lévy processes is obtained in terms of Fourier transforms. The derivation uses Spitzer’s formula and leads to a recursion on computing the characteristic function of the maximum protection-to-fund ratio using the Fourier inversion. DFP can then be valued efficiently and accurately via the fast Fourier transform. The pricing behavior of the discrete DFP is numerically examined using several Levy processes, such as geometric Brownian motion, jump-diffusion models, and variance gamma process. Numerical experiments confirm that the proposed approach produces highly accurate discrete DFP values within 1 second.     

Knowledge Networks and Careers: Academic Scientists in Industry–University Links*

abstract Careers are central to our understanding of the knowledge creation dynamics of network organizations. Based on the example of R&D project collaboration between firms and universities, this paper examines the emerging forms of career models that support knowledge flows between organizations. It explores how some large firms in the high‐technology sectors have sought to break away from the limitations of internal R&D and firm‐based careers for scientists by engaging in external collaborative projects to gain access to the open knowledge networks of university researchers. It examines how the firms seek to forge close institutional ties with their university partners and develop network career structures in order to engage academic scientists in joint knowledge production. It argues that firms have sought to extend their human resource and knowledge boundaries into the established internal labour markets of the universities with which they collaborate, leading to the formation of a pool of joint human resources with work experiences and career patterns straddling the two sectors. The paper develops the concept of an ‘overlapping internal labour market’ to provide a conceptual bridge between internal labour markets and network organizations.     

泛北部湾区域贸易自由化问题研究

本文首先对贸易自由化问题进行了界定，然后就泛北部湾地区开展贸易自由化的各项因素进行了论述。一方面，笔者列举了一系列利于在该区域实现贸易自由化的潜在性因素；另一方面，笔者也注意到区域内各国基础设施条件和经济基础差异较大，贸易商品的层次不同、贸易间的关联度差以及各国在涉及国家经济安全，产业体系建立等贸易自由化政策方面所表现的不同倾向又为泛北部湾区域贸易自由化进程增添了障碍。本文在深入分析这些因素的基础上，从产业层次角度提出实现区域内贸易自由化的进程模式和方法。     

Relationship between leader�Cmember exchange and organizational citizenship behaviors: Examining the moderating role of empowerment

This study addresses the moderating role of empowerment on the relationship between leader?Cmember exchange (LMX) quality and subordinates?? organizational citizenship behavior (OCB). Using hierarchical multilevel analyses, we found that LMX is positively related to OCB. Likewise, we found that team-level empowerment climate is positively related to individual-level feelings of empowerment, which, in turn, positively moderate the positive effect of LMX on OCB.     

Auditors’ decision-making under going-concern uncertainties in low litigation-risk environments: Evidence from Hong Kong

This study examines the audit opinions issued by auditors in a low litigation-risk environment at a time of high economic uncertainty – that of Hong Kong in the period immediately after the Asian financial crisis of 1997. Empirical research using United States data has shown that, contrary to professional guidance which restricts the issue of “disclaimer of opinion” only to situations where existing uncertainties prevent the auditor from forming an opinion, auditors tend to use the “disclaimer” report (in the going concern context) to signal more extreme client firm’s distress. In the high litigation-risk environment of the US, researchers have attributed this tendency to the idea that “disclaimer of opinion” reports are used by auditors to provide some protection against potential legal liability. The results of this study provide evidence that, even in the low litigation-risk environment of Hong Kong, auditors still use “disclaimer” reports to signal more extreme client firm financial distress. Thus, the maintenance of a high litigation-risk environment does not appear to be a necessary pre-requisite for high quality audits.     

Freedom of Association, Freedom of Contract, and the Right-to-Work Debate

The debate over union security arrangements is often presented as involving irreconcilable goals and values. Supporters of union security typically stress their importance to the union’s organizational strength and workers’ welfare. Right-to-work supporters, who favor banning such arrangements, typically emphasize employee freedom and choice. Our approach involves a unique comparison of both perspectives, which shows that neither perspective is completely compatible with safeguarding freedom. We therefore advocate reconciliation based on compulsory worker representation, which preserves the best freedom-enhancing properties of each perspective.     

An Empirical Study of Volatility in Seven Southeast Asian Stock Markets Using ARV Models

This paper investigates the volatility persistence, volatility variability from day to day and transmission of volatility in seven Southeast Asian stock markets from 1980 to 1991 using the ARV approach. We found strong evidence that shocks to volatility are persistent in Taiwan. Moreover, the Stock Exchange of Thailand Daily Index has the strongest interday volatility fluctuation. Instantaneous causality of volatility among six of the seven markets (except Seoul) was discovered. Besides, there is significant volatility spillover effect from Hong Kong to Taiwan, Malaysia to Singapore and Singapore to Malaysia in the period 1980 to 1991.     

Export instability,expansion and market concentration: A methodological interpretation

An analysis of the interrelationships among export instability, expansion and market concentration exhibited by fourteen Western Pacific countries yields three important and meaningful results. There exists a positive and significant association firstly, between export instability and export growth, secondly between the latter and geographical concentration, and hence thirdly between export fluctuations and market concentration but not in any direct causal manner as has been postulated by the general ‘concensus’. There is also evidence that the United States and Japan tend to provide the best growth potential, as demand sources for exports from Western Pacific area, at least in the near future.