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Articles 3571 - 3600 of 5945

Full-Text Articles in Business

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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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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How Strong Are The Effects Of Technological Disruption? Smartphones' Impacts On Internet And Cable Tv Services Consumption, M. R. Chang, Robert J. Kauffman, K.S. Kim Jan 2013

How Strong Are The Effects Of Technological Disruption? Smartphones' Impacts On Internet And Cable Tv Services Consumption, M. R. Chang, Robert J. Kauffman, K.S. Kim

Research Collection School Of Computing and Information Systems

Emerging technologies have created disruptions in organizational, business process and industry contexts. They act as shocks to a system. We focus on a retail telecom service provider’s offerings of different bun-dles, including mobile phones, Internet and cable TV services. We conduct empirical regularities analysis for Singapore, which was affected by the emergence of smartphones in 2009. We assess the impacts on the service bundle choices of a provider’s customers. We analyze customer switching among service bundles involving three services. We compute switching proba-bilities for each of the service levels offered, as well as between bundles. We use Markov chain transition …

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The Pricing Model Of Cloud Computing Services, Jianhui Huang, Dan Ma Jan 2013

The Pricing Model Of Cloud Computing Services, Jianhui Huang, Dan Ma

Research Collection School Of Computing and Information Systems

Cloud computing service providers offer computing resource as a utility and software as a service over network. Many believe that Cloud computing is making an industry-wise paradigm shift for IT use. Besides its technique issues, the business feature of Cloud computing attracts our interests. Specifically the practice of Amazon EC2 introduces an interesting pricing scheme. Amazon provides users with virtual computing instances as a combination of interruptible service (i.e., spot instance) and uninterruptible service (i.e., on-demand and reserved instance). Spot instance is charged at a per use price which is dynamically changing over time; users of spot instance face the …

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Changes In The White-Black House Value Distribution Gap From 1997 To 2005, Eric Fesselmeyer, Kien T. Le, Kiat Ying Seah Jan 2013

Changes In The White-Black House Value Distribution Gap From 1997 To 2005, Eric Fesselmeyer, Kien T. Le, Kiat Ying Seah

Research Collection College of Integrative Studies

This paper examines the white-black house value gap across the entire value distribution. Instead of using standard conditional mean analysis and decomposition methods (via OLS regression), we estimate and decompose the changes in the white-black house value gap from 1997 to 2005 using quantile regression. We find that the racial gap in 1997 and 2005 is mostly explained by differences in housing characteristics of white- and black-owned houses but that the variation in the racial gap is explained by racial differences in implicit prices of housing characteristics. Our results show that analysis at the conditional mean masks variations at the …

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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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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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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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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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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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International Conventions And The Failure Of A Transnational Approach To Controlling Asian Crime Business, Mark Findlay, Nafis Hanif Jan 2013

International Conventions And The Failure Of A Transnational Approach To Controlling Asian Crime Business, Mark Findlay, Nafis Hanif

Research Collection School of Social Sciences

The paper argues that without a realistic understanding of criminal enterprise located against the commercial forces shaping contemporary Asian market contexts, then domestic, bi-lateral, regional and international control initiatives are not only likely to fail in their regulatory objectives, but the premises on which they are constructed may heighten the market conditions for crime business profitability.The international convention-based approach to regulating transnational and organized crime is the framework from which a critique of non-market centred law enforcement control concentrations is developed. This critique reveals the transposition of flawed normative control considerations from domestic to supra-national control contexts, and shows how …

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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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Technology Investment Decision-Making Under Uncertainty: The Case Of Mobile Payment Systems, Robert J. Kauffman, Jun Liu, Dan Ma Jan 2013

Technology Investment Decision-Making Under Uncertainty: The Case Of Mobile Payment Systems, Robert J. Kauffman, Jun Liu, Dan Ma

Research Collection School Of Computing and Information Systems

The recent launch of Google Wallet has brought the issue of technology solutions in mobile payments (m-payments) to the forefront. In deciding whether and when to adopt m-payments, senior managers in banks are concerned about uncertainties regarding future market conditions, technology standards, and consumer and merchant responses, especially their willingness to adopt. This study applies economic theory and modeling for decision-making under uncertainty to bank investments in m-payment systems technology. We assess the projected benefits and costs of investment as a continuous-time stochastic process to determine optimal investment timing. We find that the value of waiting to adopt jumps when …

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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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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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Firm Strategy And The Internet In U.S. Commercial Banking, K. H. Goh, Robert J. Kauffman Jan 2013

Firm Strategy And The Internet In U.S. Commercial Banking, K. H. Goh, Robert J. Kauffman

Research Collection School Of Computing and Information Systems

As information technology (IT) becomes more accessible, sustaining any competitive advantage from it becomes challenging. This has caused some critics to dismiss IT as a less valuable resource. We argue that, in addition to being able to generate strategic advantage, IT should also be viewed as a strategic necessity that prevents competitive disadvantage in rapidly changing business environments. We test a set of hypotheses on strategic advantage and strategic necessity in the context of Internet banking investments among the entire population of the United States Federal Deposit Insurance Corporation (FDIC) banks from 2003 to 2005. We seek to understand whether …

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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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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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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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Book Of Secrets For Entrepreneurial Success, Institute Of Innovation And Entrepreneurship Dec 2012

Book Of Secrets For Entrepreneurial Success, Institute Of Innovation And Entrepreneurship

Research Collection Institute of Innovation and Entrepreneurship

No abstract provided.

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Do Financial Advisors Have Consumers' Best Interests? Not Always, But Trust Is Key, Say Experts, Singapore Management University Dec 2012

Do Financial Advisors Have Consumers' Best Interests? Not Always, But Trust Is Key, Say Experts, Singapore Management University

Perspectives@SMU

In a world of volatile markets and complex financial products, getting financial advice from professional financial planners and advisers might seem like a good idea for those for those trying to meet their financial goals. However, finding good, impartial and suitable advice might be akin to finding a needle in the proverbial haystack.

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Tripartism’S Stress Points Are Showing, Tan K. B. Eugene Dec 2012

Tripartism’S Stress Points Are Showing, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

SMU Assistant Professor of Law Eugene Tan discussed the implications of the SMRT strike incident and whether tripartism has lost its relevance. Assistant Prof Tan highlighted that there are deep, systemic issues within SMRT, and that the reach of the triapartism is not enough. He also highlighted the need to stamp out discrimination, and said that employers need to review their mindsets towards workers, especially foreign ones, and act ethically, equitably and responsibly given the default imbalance of power in the workplace.

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Banks' Survival During The Financial Crisis: The Role Of Regulatory Reporting Quality, Jeffrey Ng, Tjomme O. Rusticus Dec 2012

Banks' Survival During The Financial Crisis: The Role Of Regulatory Reporting Quality, Jeffrey Ng, Tjomme O. Rusticus

Research Collection School Of Accountancy

In this paper, we investigate the effect of bank transparency before the crisis on bank stability during the financial crisis that erupted in 2008. Using a large sample of private and public commercial banks in the United States, we find that transparency enhances stability. We use two measures of transparency. We develop a new measure of financial reporting transparency based on loan loss provision estimation errors. We corroborate our findings using a second measure based on the incidence of accounting restatements. We show that lower transparency before the crisis is associated with higher non-performing loans and lower profitability at the …

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Melbourne Mandate: Key Document Defining The Direction Of The Global Pr Industry And Endorsed By 160 000 Professionals, Jurrien Gregor Halff, Daniel Tisch, Anne Gregory, Jean Valin Dec 2012

Melbourne Mandate: Key Document Defining The Direction Of The Global Pr Industry And Endorsed By 160 000 Professionals, Jurrien Gregor Halff, Daniel Tisch, Anne Gregory, Jean Valin

Research Collection Lee Kong Chian School Of Business

No abstract provided.

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Do Banks Monitor Corporate Decisions? Evidence From Bank Financing Of Mergers & Acquisitions, Sheng Huang, Anand Srinivasan, Ruichang Lu Dec 2012

Do Banks Monitor Corporate Decisions? Evidence From Bank Financing Of Mergers & Acquisitions, Sheng Huang, Anand Srinivasan, Ruichang Lu

Research Collection Lee Kong Chian School Of Business

We examine whether banks, in providing financing for the deals, monitor firms mergers and acquisitions to the extent that will benefit acquirers shareholders. Inconsistent with the conventional theoretical argument, we do not find that bank- financed deals are associated with better stock or accounting performance than bond- financed deals or deals paid with internal cash. There is strong evidence instead that banks tighten up the loan contract terms in financing the deals, such as cutting short the loan maturity and imposing higher collateral requirement and more covenant restrictions. However, bank-financed deals are more likely to be terminated when they experience …

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Differential Impact Of Directors’ Social And Financial Capital On Corporate Interlock Formation, Nicholas Harrigan, Matthew Bond Dec 2012

Differential Impact Of Directors’ Social And Financial Capital On Corporate Interlock Formation, Nicholas Harrigan, Matthew Bond

Research Collection School of Social Sciences

Exponential random graph models (ERGMs) are increasingly applied to observed network data and are central to understanding social structure and network processes. The chapters in this edited volume provide a self-contained, exhaustive account of the theoretical and methodological underpinnings of ERGMs, including models for univariate, multivariate, bipartite, longitudinal and social-influence type ERGMs. Each method is applied in individual case studies illustrating how social science theories may be examined empirically using ERGMs. The authors supply the reader with sufficient detail to specify ERGMs, fit them to data with any of the available software packages and interpret the results.

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Muddy Cloud With Silver Lining? Bring It On!, Themin Suwardy Dec 2012

Muddy Cloud With Silver Lining? Bring It On!, Themin Suwardy

Research Collection School Of Accountancy

No abstract provided.

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An Extensible Framework For Selecting Incremental Innovations, Arcot Desai Narasimhalu Dec 2012

An Extensible Framework For Selecting Incremental Innovations, Arcot Desai Narasimhalu

Research Collection School Of Computing and Information Systems

There are several innovation methodologies reported in the literature starting from simple concepts such as technology push and market pull all the way to Disruptive innovation. Almost all these methods do not provide for customizability and extensibility. The method described in this paper is called Quick and Dirty Innovation Method or QaDIM in short to represent the fact that the method can be used rather easily to identify incremental innovation opportunities. The paper will first describe the basic concept, and then proceed to give a sample framework before proceeding to describe the extensibility. The method allows firms and individuals to …

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Reputation As Public Policy For Internet Security: A Field Study, Qian Tang, Leigh L. Linden, John S. Quarterman, Andrew Whinston Dec 2012

Reputation As Public Policy For Internet Security: A Field Study, Qian Tang, Leigh L. Linden, John S. Quarterman, Andrew Whinston

Research Collection School Of Computing and Information Systems

Cybersecurity is a national priority in this big data era. Because of the lack of incentives and the existence of negative externality, companies often underinvest in addressing security risks and accidents, despite government and industry recommendations. In the present article, we propose a method that utilizes reputation through information disclosure to motivate companies to behave pro-socially, improving their Internet security. Using outbound spam as a proxy for Internet security, we conducted a quasiexperimental field study for eight countries through SpamRankings.net. This outgoingspam-based study shows that information disclosure on outgoing spam can help reduce outgoing spam, approximately by 16 percent. This …

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Fuelling The Asian Growth Engine: Talent Challenges, Strategies And Trends, Mario Ferraro, Catherine Mudford, Karina Kuok, Saumya Sindhwani, Rebecca Siow Dec 2012

Fuelling The Asian Growth Engine: Talent Challenges, Strategies And Trends, Mario Ferraro, Catherine Mudford, Karina Kuok, Saumya Sindhwani, Rebecca Siow

Research Collection Lee Kong Chian School Of Business

The emerging economies of Asia are increasingly playing a critical role in the global arena, even as there is continuing turmoil and uncertainty in other parts of the world due to economic, financial and political upheavals. While Asian economies are undoubtedly impacted by global headwinds, most of them have been buffered by their sound economic and policy fundamentals, healthy domestic demand and continued inflow of Foreign Direct Investment (FDI). Meanwhile, Asia is undergoing its own transformation: many countries in Asia are experiencing greater economic prosperity and rising affluence, translating into higher demand for goods and services. As businesses flock to …

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