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Articles 4471 - 4500 of 6939

Full-Text Articles in Business

Regret Based Robust Solutions For Uncertain Markov Decision Processes, Asrar Ahmed, Pradeep Reddy Varakantham, Yossiri Adulyasak, Patrick Jaillet Jan 2013

Regret Based Robust Solutions For Uncertain Markov Decision Processes, Asrar Ahmed, Pradeep Reddy Varakantham, Yossiri Adulyasak, Patrick Jaillet

Research Collection School Of Computing and Information Systems

In this paper, we seek robust policies for uncertain Markov Decision Processes (MDPs). Most robust optimization approaches for these problems have focussed on the computation of maximin policies which maximize the value corresponding to the worst realization of the uncertainty. Recent work has proposed minimax regret as a suitable alternative to the maximin objective for robust optimization. However, existing algorithms for handling minimax regret are restricted to models with uncertainty over rewards only. We provide algorithms that employ sampling to improve across multiple dimensions: (a) Handle uncertainties over both transition and reward models; (b) Dependence of model uncertainties across state, …

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Dynamic Two-Sided Pricing Under Sequential Innovation, Mei Lin, Xiajun Pan Jan 2013

Dynamic Two-Sided Pricing Under Sequential Innovation, Mei Lin, Xiajun Pan

Research Collection School Of Computing and Information Systems

Many two-sided platforms offer innovative hardware products that improve in quality and enter the market sequentially. We analyze the impact of the decrease in the production cost on a monopoly platform owner's dynamic two-sided pricing problem, in which buyers are strategic and exert a cross-side network effect to the seller side. Our findings show that a greater decrease in cost raises the optimal price of the low-quality product and allocates more buyer-side demand to the future market. Furthermore, such decrease in cost may also lead to a higher optimal price for the future higher-quality product, given a sufficiently significant quality …

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Valuation Of Participation In Social Gaming, Kwansoo Kim, Byungjoon Yoo, Robert J. Kauffman Jan 2013

Valuation Of Participation In Social Gaming, Kwansoo Kim, Byungjoon Yoo, Robert J. Kauffman

Research Collection School Of Computing and Information Systems

This study examines the value of the time that a user spends to participate in a social game. We focus on how a massive multiplayer online role-playing game (MMORPG) vendor can establish prices to encourage participation and retain its players. We estimate value through an application of the hedonic pricing model and analyze a data set for an MMORPG in Korea. The results permit us to estimate the value of game-playing time in monetary terms. Based on our empirical results, we propose an economic model and conduct numerical simulation to show how a game vendor can apply differential pricing in …

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Analyzing The Impact Of Cloud Services Brokers On Cloud Computing Markets, Richard D. Shang, Jianhui Huang, Yinping Yang, Robert J. Kauffman Jan 2013

Analyzing The Impact Of Cloud Services Brokers On Cloud Computing Markets, Richard D. Shang, Jianhui Huang, Yinping Yang, Robert J. Kauffman

Research Collection School Of Computing and Information Systems

This research offers a theoretical model of brokered services and provides an analysis of their impact on the cloud computing market with risk preference-based stratification of client segments. The model structures the decision problem that clients face when they choose among spot, reserved and brokered services. Although all the three types of services do not indemnify the cloud services client against other kinds of service outages, due to changes in market demand, service interruptions occur most frequently in the spot market, and are lower when brokered services are offered, and no risk of inter-ruption is involved in reserved services. Based …

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Seller Diversity On A Technology-Based Platform, Ruhai Wu, Mei Lin Jan 2013

Seller Diversity On A Technology-Based Platform, Ruhai Wu, Mei Lin

Research Collection School Of Computing and Information Systems

Managing a technology portfolio is one of the great challenges for sustained success, especially in high-technology industrieswhere technologies can be a major selling point. For engineers, this portfolio is more of a toolbox for solving design problems,but in large organizations there can be so many technologies used in different business areas that even the engineers may not beaware of all of them. When the same technologies are used in different types of products, knowledge about them can also begenerated by various groups within an organization. To improve the usefulness of a company's technology base, this paperproposes the use of a …

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Decision Support For Assorted Populations In Uncertain And Congested Environments, Pradeep Reddy Varakantham, Asrar Ahmed, Shih-Fen Cheng Jan 2013

Decision Support For Assorted Populations In Uncertain And Congested Environments, Pradeep Reddy Varakantham, Asrar Ahmed, Shih-Fen Cheng

Research Collection School Of Computing and Information Systems

This research is motivated by large scale problems in urban transportation and labor mobility where there is congestion for resources and uncertainty in movement. In such domains, even though the individual agents do not have an identity of their own and do not explicitly interact with other agents, they effect other agents. While there has been much research in handling such implicit effects, it has primarily assumed deterministic movements of agents. We address the issue of decision support for individual agents that are identical and have involuntary movements in dynamic environments. For instance, in a taxi fleet serving a city, …

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Uncertain Congestion Games With Assorted Human Agent Populations , Pradeep Reddy Varakantham, Asrar Ahmed, Shih-Fen Cheng Jan 2013

Uncertain Congestion Games With Assorted Human Agent Populations , Pradeep Reddy Varakantham, Asrar Ahmed, Shih-Fen Cheng

Research Collection School Of Computing and Information Systems

Congestion games model a wide variety of real-world resource congestion problems, such as selfish network routing, traffic route guidance in congested areas, taxi fleet optimization and crowd movement in busy areas. However, existing research in congestion games assumes: (a) deterministic movement of agents between resources; and (b) perfect rationality (i.e. maximizing their own expected value) of all agents. Such assumptions are not reasonable in dynamic domains where decision support has to be provided to humans. For instance, in optimizing the performance of a taxi fleet serving a city, movement of taxis can be involuntary or nondeterministic (decided by the specific …

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Managerial Incentives And Management Forecast Precision, Qiang Cheng, Ting Luo, Heng Yue Jan 2013

Managerial Incentives And Management Forecast Precision, Qiang Cheng, Ting Luo, Heng Yue

Research Collection School Of Accountancy

Managers have great discretion in determining management forecast characteristics, but little is known about how managerial incentives affect these characteristics. In this paper, we examine whether managers strategically choose the precision of their earnings forecasts for self-serving purposes. Building on prior research demonstrating that the market reaction to vague management forecasts is weaker than its reaction to precise forecasts, we find that for management forecasts disclosed before insider sales, more positive (negative) news forecasts are more (less) precise than other management forecasts. The opposite applies to management forecasts disclosed before insider purchases. These results are consistent with managers strategically choosing …

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The Impact Of Sfas133 On Income Smoothing By Banks Through Loan Loss Provisions, Emre Kilic, Gerald J. Lobo, Tharindra Ranasinghe, K. Sivaramakrishnan Jan 2013

The Impact Of Sfas133 On Income Smoothing By Banks Through Loan Loss Provisions, Emre Kilic, Gerald J. Lobo, Tharindra Ranasinghe, K. Sivaramakrishnan

Research Collection School Of Accountancy

We examine the impact of SFAS 133, Accounting for Derivative Instruments and Hedging Activities, on the reporting behavior of commercial banks and the informativeness of their financial statements. We argue that because the stricter recognition and classification requirements of SFAS 133 reduced banks' ability to smooth income through derivatives, banks more affected by SFAS 133 will rely more on loan loss provisions to smooth income. We find evidence consistent with this argument. We also find that the increased reliance on loan loss provisions for smoothing income has impaired the informativeness of loan loss provisions.

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To Pool Or Not To Pool, Teng Aun Khoo, Kai Guan Tan Jan 2013

To Pool Or Not To Pool, Teng Aun Khoo, Kai Guan Tan

Research Collection School Of Accountancy

Under the Singapore’s modified territorial tax system, the foreign sourced income (FSI) received or deemed received in Singapore is subject to tax unless otherwise exempted. To avoid having the same income from being taxed twice, foreign tax credits (FTC) are granted to resident taxpayers for the foreign tax paid (FTP) in the country of source against the Singapore tax payable on the same income. Presently, we have two systems under which FTC can be granted, subject to satisfying certain conditions, namely the existing foreign tax credit system and the new FTC pooling system.

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Three Essays On Mutual Fund Ratings, Wee Seng Ng Jan 2013

Three Essays On Mutual Fund Ratings, Wee Seng Ng

Dissertations and Theses Collection (Open Access)

The incessant growth of the mutual fund industry has made the task of selecting mutual funds an increasingly challenging one. Unsophisticated investors turn to low-cost and readily available ratings to guide their investment decisions. Unsurprisingly, mutual fund ratings are hugely popular and influential. Anecdotal evidence and academic findings both suggest that investors gravitate towards top-rated funds. Rating is a double-edged sword. Although the use of rating simplifies the otherwise onerous job of evaluating mutual fund performance, it can lead to adverse consequences. Investors who invest only in top-rated funds are inadvertently assuming that good ratings indicate good future performance. However, …

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Corporate Social Responsibility As Corporate Soft Law: Mainstreaming Ethical And Responsible Conduct In Corporate Governance, Eugene K. B. Tan Jan 2013

Corporate Social Responsibility As Corporate Soft Law: Mainstreaming Ethical And Responsible Conduct In Corporate Governance, Eugene K. B. Tan

Research Collection Yong Pung How School Of Law

This article explores corporate social responsibility ("CSR') as a viable mode of regulation and governance in the corporate arena. A starting premise is that good corporate governance must move resolutely beyond a compliance mindset to one which recognises that effective corporate governance must have an ethical backbone in which the dimensions of responsibility, transparency, and accountability are evident, recognised and supported. Regulatory endeavours and corporate governance reforms in the past decade have increasingly intersected with mainstream CSR motivations. CSR is increasingly inducted and mainstreamed into corporate governance thinking, characterised by the dual perspective ofrisk management and values-driven/principled governance and operations. …

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Negotiating Successfully In Asia, Michael Benoliel Jan 2013

Negotiating Successfully In Asia, Michael Benoliel

Research Collection Lee Kong Chian School Of Business

Cross-cultural negotiations are complex, challenging, and difficult to navigate because much of the Asian culture is unstated, implicit, and internalized in subtle behavioral patterns. It is like an iceberg; more is invisible and less is visible. To understand how the Asian negotiation values and practices are different from those in the West, I describe briefly the Asian cultural roots, highlight the major dimensions that differentiate cultures, explore the factors that influence the Asian negotiation processes and outcomes, and provide a list of practical suggestions for negotiating successful deals with Asian negotiators.

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Reference Point Adaptation And Disposition Effect, Chiraphol New Chiyachantana, Zongfei Yang Jan 2013

Reference Point Adaptation And Disposition Effect, Chiraphol New Chiyachantana, Zongfei Yang

Research Collection Lee Kong Chian School Of Business

This paper investigates the importance of reference point adaptation in the analysis of the disposition effect. We consider two exogenous factors pertinent to reference point adaptation: prior outcome and recent expectation of future outcome. We show that the incidence of the disposition effect varies in a manner consistent with reference point adaptation. Both prior outcome and recent expectation of future outcome affect the location of the reference point and have a large and significant impact on the incidence of the disposition effect. First, the disposition effect can largely be explained by investors’ inability to sufficiently adapt the reference point in …

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How Does Culture Influence Corporate Risk-Taking?, Kai Li, Dale Griffin, Heng Yue, Longkai Zhao Jan 2013

How Does Culture Influence Corporate Risk-Taking?, Kai Li, Dale Griffin, Heng Yue, Longkai Zhao

Research Collection School Of Accountancy

We investigate the role of national culture in corporate risk-taking. We postulate that culture influencescorporate risk-taking both through its effect on managerial decision-making and through its effect on acountry’s formal institutions. Further, we postulate that the influence of culture is conditioned on theextent of managerial discretion as measured by earnings discretion and firm size. Using firm-level datafrom 35 countries and employing a hierarchical linear modeling approach to isolate the effects of firmleveland country-level variables, we show that individualism has a positive and significant association,whereas uncertainty avoidance and harmony have negative and significant associations, with corporaterisk-taking. Greater earnings discretion strengthens and …

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Review On The State Of Sustainability Reporting In Singapore, Soo Chiat Hwang, Teng Aun Khoo, Dan Chi Wong Jan 2013

Review On The State Of Sustainability Reporting In Singapore, Soo Chiat Hwang, Teng Aun Khoo, Dan Chi Wong

Research Collection School Of Accountancy

The trend of sustainability reports has increased inexorably as the clamor by various stakeholders including NGOs have been growing louder and louder. Some countries have even made sustainability reporting mandatory. In Singapore only a small percentage of listed companies are voluntary providing sustainability reporting but this number is set to increase in line with the world trend. As sustainability reporting in Singapore will continue to grow this study attempts to address the perceptions of the importance and usefulness of sustainability reporting, the reporting framework and the training needs of both users and preparers to provide such reports. The results from …

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The Opportunistic Reporting Of Material Events And The Apparent Misconception Of Investors' Reaction, Dan Segal, Benjamin Segal Jan 2013

The Opportunistic Reporting Of Material Events And The Apparent Misconception Of Investors' Reaction, Dan Segal, Benjamin Segal

Research Collection School Of Accountancy

Using a comprehensive sample of non-earnings 8-K filings from 1996 to 2011, we examine whether firms engage in opportunistic reporting of mandatory and voluntary news. We find strong evidence of opportunistic reporting of negative news, especially among public firms. Public firms are more likely to delay disclosure of negative news, report negative news after trading hours, and report on the last day of the week. We also find evidence of opportunistic bundling of news. Our findings support the notion that managers engage in strategic disclosure by delaying or obfuscating negative news in order to mitigate the potential market reaction. Factors …

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Not All That Glitters Is Gold: The Effect Of Attention And Blogs On The Investors' Investing Behaviors, Nan Hu, Yi Dong, Ling Liu, Lee J. Yao Jan 2013

Not All That Glitters Is Gold: The Effect Of Attention And Blogs On The Investors' Investing Behaviors, Nan Hu, Yi Dong, Ling Liu, Lee J. Yao

Research Collection School Of Computing and Information Systems

This article investigates the relationship between a firm’s visibility in blogspaces, termed blog exposure, and the cross-sectional stock returns. We show that blog exposure is fundamentally different from the traditional media coverage, and securities with low blog exposure earn higher returns than stocks with high blog exposure. We further illustrate that such an effect is more prominent for stocks with low institutional ownership. Contrary to traditional media coverage, the return premium associated with blog exposure cannot be explained by either the illiquidity hypothesis or the investor recognition hypothesis based on the rational-agent framework. Instead, our results suggest that blog effect …

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Automated Parameter Tuning Framework For Heterogeneous And Large Instances: Case Study In Quadratic Assignment Problem, Linda Lindawati, Zhi Yuan, Hoong Chuin Lau, Feida Zhu Jan 2013

Automated Parameter Tuning Framework For Heterogeneous And Large Instances: Case Study In Quadratic Assignment Problem, Linda Lindawati, Zhi Yuan, Hoong Chuin Lau, Feida Zhu

Research Collection School Of Computing and Information Systems

This paper is concerned with automated tuning of parameters of algorithms to handle heterogeneous and large instances. We propose an automated parameter tuning framework with the capability to provide instance-specific parameter configurations. We report preliminary results on the Quadratic Assignment Problem (QAP) and show that our framework provides a significant improvement on solutions qualities with much smaller tuning computational time.

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The Aftermarket Performance Of Initial Public Offerings, Chiyachantana N. Chiraphol, Theerawat Pinta, Nareerat Taechapiroontong, Anantaporn Wongkham Jan 2013

The Aftermarket Performance Of Initial Public Offerings, Chiyachantana N. Chiraphol, Theerawat Pinta, Nareerat Taechapiroontong, Anantaporn Wongkham

Research Collection Lee Kong Chian School Of Business

This paper examines the aftermarket performance of initial public offerings (IPOs) and explores the underpricing of IPOs in an Asian emerging equity market using a comprehensive sample of IPOs. Our findings suggest that there exist a significant underpricing. Specifically, new issues have been offered at an average market-adjusted discount of about 20%. The magnitude of IPO underpricing is significantly larger for large firms, older firms and firms with small offering size.

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A Dynamic Perspective On Affect And Creativity, Ronald Joachim Bledow, K. Rosing, M. Frese Jan 2013

A Dynamic Perspective On Affect And Creativity, Ronald Joachim Bledow, K. Rosing, M. Frese

Research Collection Lee Kong Chian School Of Business

We argue that creativity is influenced by the dynamic interplay of positive and negative affect: High creativity results if a person experiences an episode of negative affect that is followed by a decrease in negative affect and an increase in positive affect, a process referred to as an “affective shift.” An experience-sampling study with 102 full-time employees provided support for the hypotheses. An experimental study with 80 students underlined the proposed causal effect of an affective shift on creativity. We discuss practical implications for facilitating creativity in organizations.

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The Effect Of Information Disclosure On Information Asymmetry, Chiraphol New Chiyachantana, Neeranuch Nuengwang, Nareerat Taechapiroontong, Pakpoom Thanarung Jan 2013

The Effect Of Information Disclosure On Information Asymmetry, Chiraphol New Chiyachantana, Neeranuch Nuengwang, Nareerat Taechapiroontong, Pakpoom Thanarung

Research Collection Lee Kong Chian School Of Business

This study investigates the relation among information disclosure, firm characteristics and information asymmetry. The authors find evidence consistent with the notion that increasing corporate disclosure and transparency reduces the asymmetric information between informed and uninformed investors. The findings indicate a strong relation between firm characteristics and level of information disclosure. Larger firms, firms with high growth opportunity and superior performance are associated with higher level of information disclosure. With respect to type of information, large firms, firms with superior operating performance, high growth opportunity are likely to disclose the investment and structural change as well as legal and miscellaneous information. …

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Love, Hate, Ambivalence, Or Indifference? A Conceptual Examination Of Workplace Crimes And Organizational Identification, Abhijeet K. Vadera, Michael G. Pratt Jan 2013

Love, Hate, Ambivalence, Or Indifference? A Conceptual Examination Of Workplace Crimes And Organizational Identification, Abhijeet K. Vadera, Michael G. Pratt

Research Collection Lee Kong Chian School Of Business

Although research has shown that there may be very different types of workplace crimes, scholarly work in this area (a) is currently fragmented with very little communication between very similar streams of research and (b) tends to be incomplete and can lead to conflicting findings. We address both of these shortcomings. First, we propose a typology of different types of workplace crimes (consisting of pro-organizational, nonaligned-organizational, and anti-organizational crimes) based on the intentions of the perpetrators. Second, we link these intentions to various identification "pathologies"- such as over-identification and over-disidentification, under-identification and ambivalent identification-and argue that these pathologies are linked …

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Assessment Centers And The Measurement Of Personality, Neil D. Christiansen, Brian J. Hoffman, Filip Lievens, Andrew B. Speer Jan 2013

Assessment Centers And The Measurement Of Personality, Neil D. Christiansen, Brian J. Hoffman, Filip Lievens, Andrew B. Speer

Research Collection Lee Kong Chian School Of Business

Although personality constructs are now widely accepted as being important for understanding work behavior, self-report personality tests as a method of assessment are not without their critics (e.g., Morgeson et al., 2007). Whether misguided or not, concerns persist regarding the validity of these measures and the issue of applicant faking has yet to be fully resolved (Tett & Christiansen, 2007). Moreover, applicant reactions tend to be less favorable for personality inventories than many other assessments commonly used in employment settings (Hausknecht, Day, & Thomas, 2004). To some, self-report inventories may be a poor way to assess personality traits, and yet …

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Arrow-Fisher-Hanemann-Henry And Dixit-Pindyck Option Values Under Strategic Interactions, Tomoki Fujii, Ryuichiro Ishikawa Jan 2013

Arrow-Fisher-Hanemann-Henry And Dixit-Pindyck Option Values Under Strategic Interactions, Tomoki Fujii, Ryuichiro Ishikawa

Research Collection School Of Economics

We extend the Arrow–Fisher–Hanemann–Henry (AFHH) and Dixit–Pindyck (DP) option values to a game situation. By reinterpreting the AFHH option value as a change in the surplus from conservation because of the prospect of future information, we deal with a conceptual difficulty associated with the AFHH option value in the presence of strategic interactions. We then introduce the DP option value into a game situation. We show that the equivalence between the expected value of information and the DP option value in the standard model does not hold under strategic interactions.

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Collectivistic Norms And International Entrepreneurship: A Tale Of Two Clans, The Wenzhounese From China And The Chettiars From India, Wee Liang Tan Jan 2013

Collectivistic Norms And International Entrepreneurship: A Tale Of Two Clans, The Wenzhounese From China And The Chettiars From India, Wee Liang Tan

Research Collection Lee Kong Chian School Of Business

There is a need in the field of international entrepreneurship for ideas and theory developed from within the SME field and less reliance on that developed in the field of international business and large firms. This paper seeks to address this gap but examining the two groups of international entrepreneurs from China and India: the Wenzhou people and the Chettiars. These two groups began internationalising in the past before globalisation became a norm in the colonial days and before when ships sailed along trade winds. It seeks to draw lessons from these two groups: their collectivistic norms and practices.

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Fate Work: A Conversation, Valentina Desideri, Stefano Harney Jan 2013

Fate Work: A Conversation, Valentina Desideri, Stefano Harney

Research Collection Lee Kong Chian School Of Business

The article focuses on a conversation between dancer Valentina Desideri and professor Stefano Harney during the Spring Seminars of the Performance Art Forum (PAF) in Saint Erme, France. Harney suggests that fate work may be considered as a potential practice on the way work determines one's life. Desideri says that one can shape and construct his future through work under capitalism.

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Performance Appraisals As Heuristic Judgments Under Uncertainty, Jochen Reb, Gary J. Greguras, Shenghua Luan, Michael A. Daniels Jan 2013

Performance Appraisals As Heuristic Judgments Under Uncertainty, Jochen Reb, Gary J. Greguras, Shenghua Luan, Michael A. Daniels

Research Collection Lee Kong Chian School Of Business

Employees are constantly making decisions and judgments that have the potential to affect themselves, their families, their work organizations, and on some occasion even the broader societies in which they live. A few examples include: deciding which job applicant to hire, setting a production goal, judging one’s level of job satisfaction, deciding to steal from the cash register, agreeing to help organize the company’s holiday party, forecasting corporate tax rates two years later, deciding to report a coworker for sexual harassment, and predicting the level of risk inherent in a new business venture. In other words, a great many topics …

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Stochastic Dominance Analysis Of Cta Funds, Hooi Hooi Lean, Kok Fai Phoon, Wing Keung Wong Jan 2013

Stochastic Dominance Analysis Of Cta Funds, Hooi Hooi Lean, Kok Fai Phoon, Wing Keung Wong

Research Collection Lee Kong Chian School Of Business

In this paper, we employ the stochastic dominance (SD) approach to rank the performance of commodity trading advisors (CTA) funds. An advantage of this approach is that it alleviates the problems that can arise if CTA returns are not normally distributed by utilizing the entire returns distribution. We find both first-order and higher-order SD relationships amongst the CTA funds and conclude that investors are better off investing in the first-order dominant funds to maximize their expected utilities and expected wealth. However, for higher-order dominant CTAs, risk-averse investors can maximize their expected utilities but not their expected wealth. In addition to …

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On The Institutionalization Of Trust Research And Practice: Heaven Awaits!, Donald Lee Ferrin Jan 2013

On The Institutionalization Of Trust Research And Practice: Heaven Awaits!, Donald Lee Ferrin

Research Collection Lee Kong Chian School Of Business

No abstract provided.

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