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Articles 6511 - 6540 of 6934

Full-Text Articles in Business

Nurse Rostering Problems: A Bibliographic Survey, Brenda Cheang, Haibing Li, Andrew Lim, Brian Rodrigues Dec 2003

Nurse Rostering Problems: A Bibliographic Survey, Brenda Cheang, Haibing Li, Andrew Lim, Brian Rodrigues

Research Collection Lee Kong Chian School Of Business

Hospitals need to repeatedly produce duty rosters for its nursing staff. The good scheduling of nurses has impact on the quality of health care, the recruitment of nurses, the development of budgets and other nursing functions. The nurse rostering problem (NRP) has been the subject of much study. This paper presents a brief overview, in the form of a bibliographic survey, of the many models and methodologies available to solve the NRP.

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The Performance Implications Of Ownership Driven Governance Reform, Toru Yoshikawa, Phillip H. Phan Dec 2003

The Performance Implications Of Ownership Driven Governance Reform, Toru Yoshikawa, Phillip H. Phan

Research Collection Lee Kong Chian School Of Business

This paper explores the performance impact of recent changes in foreign shareholdings and boardroom reforms in Japan. Empirical research on the impact of reform on the Japanese corporate governance system could provide useful lessons for their European counterparts who are themselves facing similar pressures to reform. We found that although participation of outside directors in strategic decision-making was associated with positive stock returns, the increase in the ratio of outside directors, the separation of the board members and executive officers, and the reduction of board size were not related to firm performance.

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Assessing The Relative Informativeness And Permanence Of Pro Forma Earnings And Gaap Operating Earnings, Nilabhra Bhattacharya, Erv Black, Ted Christensen, Chad Larson Dec 2003

Assessing The Relative Informativeness And Permanence Of Pro Forma Earnings And Gaap Operating Earnings, Nilabhra Bhattacharya, Erv Black, Ted Christensen, Chad Larson

Research Collection School Of Accountancy

This study investigates whether market participants perceive pro forma earnings to be more informative and more persistent than GAAP operating income by analyzing a sample of 1,149 actual pro forma press releases. We find that pro forma announcers report frequent GAAP losses and are mostly concentrated in the service and high-tech industries. Our analyses of short-window abnormal returns and revisions in analysts’ one-quarter-ahead earnings forecasts indicate that pro forma earnings are more informative and more permanent than GAAP operating earnings. Our evidence suggests that market participants believe pro forma earnings are more representative of “core earnings” than GAAP operating income.

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Displaying Group Cohesiveness: Humour And Laughter In The Public Lectures Of Management Gurus, David Greatbatch, Timothy Adrian Robert Clark Dec 2003

Displaying Group Cohesiveness: Humour And Laughter In The Public Lectures Of Management Gurus, David Greatbatch, Timothy Adrian Robert Clark

Research Collection Lee Kong Chian School Of Business

As perhaps the highest profile group of management speakers in the world, so-called management gurus use their appearances on the international management lecture circuit todisseminate their ideas and to build their personal reputations with audiences of managers. This article examines the use of humour by management gurus during these public performances. Focusing on video recordings of lectures conducted by four leading management gurus (Tom Peters, Rosabeth Moss Kanter, Peter Senge and Gary Hamel), the article explicates the verbal and nonverbal practices that the gurus use when they evoke audience laughter. These practices allow the gurus to project clear message completion …

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Kill A Brand, Keep A Customer, Nirmalya Kumar Dec 2003

Kill A Brand, Keep A Customer, Nirmalya Kumar

Research Collection Lee Kong Chian School Of Business

Kill a Brand, Keep a CustomerMost brands don't make much money. Year after year, businesses generate 80% to 90% of their profits from less than 20% of their brands. Yet most companies tend to ignore loss-making brands, unaware of the hidden costs they incur.That's because executives believe it's easy to erase a brand; they have only to stop investing in it, they assume, and it will die a natural death. But they're wrong. When companies drop brands clumsily, they antagonize loyal customers: Research shows that seven times out of eight, when firms merge two brands, the market share of the …

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Measuring Attraction To Organizations, Scott Highhouse, Filip Lievens, Evan F. Sinar Dec 2003

Measuring Attraction To Organizations, Scott Highhouse, Filip Lievens, Evan F. Sinar

Research Collection Lee Kong Chian School Of Business

Organizational attraction measures are commonly used as surrogate assessments of organizational pursuit. Despite the range in content often encompassed by such instruments, no research has systematically examined the assumptions underlying their use. The authors address this issue by empirically distinguishing items assessing attractiveness, prestige, and behavioral intentions and by modeling their effects on organization pursuit. Undergraduates (N = 305) were randomly assigned to recruitment literature from one of five well-known companies and were asked to respond to a series of items commonly used in past research. Analyses of the item responses suggested that three components of organizational attraction can be …

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Task Allocation Via Multi-Agent Coalition Formation: Taxonomy, Algorithms And Complexity, Hoong Chuin Lau, L. Zhang Nov 2003

Task Allocation Via Multi-Agent Coalition Formation: Taxonomy, Algorithms And Complexity, Hoong Chuin Lau, L. Zhang

Research Collection School Of Computing and Information Systems

Coalition formation has become a key topic in multiagent research. In this paper, we propose a preliminary classification for the coalition formation problem based on three driving factors (demands, resources and profit objectives). We divide our analysis into 5 cases. For each case, we present algorithms and complexity results. We anticipate that with future research, this classification can be extended in similar fashion to the comprehensive classification for the job scheduling problem.

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Manpower Allocation With Time Windows And Job Teaming Constraints, Xi Li, Yan Zhi Li, Andrew Lim, Brian Rodrigues Nov 2003

Manpower Allocation With Time Windows And Job Teaming Constraints, Xi Li, Yan Zhi Li, Andrew Lim, Brian Rodrigues

Research Collection Lee Kong Chian School Of Business

In the Manpower Allocation Problem with Time Windows and Job-Teaming Constraints (MAPTWTC), we have a set of jobs located at various locations where each job requires a team of workers. Each job has a time window and a job duration, during which everyone on the team has to be present. The job requirement is satisfied if and only if the required composite team works for long enough duration within the job's time window. The objective of the problem is find a schedule to minimize a weighted sum of the total number of workers, the total travelling distances of all workers …

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Prospect Theory And Institutional Investors, Melvyn Teo, Paul G. J. O'Connell Nov 2003

Prospect Theory And Institutional Investors, Melvyn Teo, Paul G. J. O'Connell

Research Collection Lee Kong Chian School Of Business

There is ample evidence that past performance affects the trading decisions of individual investors. This paper looks at this issue using a detailed database of currency trading decisions of institutional investors. Past performance manifestly affects currency risk-taking in this group, but the sign and magnitude of the effect runs counter to much of the existing theory and evidence. There is no evidence whatsoever of disposition effects; rather, the dominant characteristic is aggressive risk reduction in the wake of losses. This effect is more prominent later in the year, and among older and more experienced funds. A modified version of the …

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Pricing And Qos Of Information Services In A Competitive Market, Zhen Liu, Laura Wynter, Cathy Xia Nov 2003

Pricing And Qos Of Information Services In A Competitive Market, Zhen Liu, Laura Wynter, Cathy Xia

Research Collection School Of Computing and Information Systems

Design of e-commerce services that are competitive in a quickly responding market requires the analyses of prices and price structures. We develop a general model of an e-commerce market that allows us to analyze optimal price structures, both flat and usage-based. Based on the price structure of a major web hosting provider, we consider single-tier and two-tier (burst-rate) pricing, and our result suggests that the more complex two-tier structure may not be worth the marketing effort, as the firm's equilibrium profits will not increase through the use of this structure. An essential feature of our approach is that we model …

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A Renewable-Resource Approach To Database Valuation, Xavier Dreze, Andre Bonfrer Oct 2003

A Renewable-Resource Approach To Database Valuation, Xavier Dreze, Andre Bonfrer

Research Collection Lee Kong Chian School Of Business

We demonstrate in this paper that firms should view customers in a database as a renewable resource when valuating them. Indeed, customer names flow in and out of the firm’s databases, and the goal of the firm is to optimize the overall customer acquisition/cultivation/attrition process. The renewable resource approach to the problem of maximizing the profits generated by a flow of customer names is more appropriate than the traditional Customer Lifetime Value (CLV) approach. We show that CLV underestimates the true value of names (by more than 400% in some cases) and leads to sub-optimal customer relationship management and acquisition …

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The Enhancement Bias In Consumer Decisions To Adopt And Utilize Product Innovations, Shenghui Zhao, Robert J. Meyer, Jin K. Han Oct 2003

The Enhancement Bias In Consumer Decisions To Adopt And Utilize Product Innovations, Shenghui Zhao, Robert J. Meyer, Jin K. Han

Research Collection Lee Kong Chian School Of Business

The ability of consumers to anticipate the value they will draw from new product generations that expand the capabilities of incumbent goods is explored. Drawing on previous research in affective forecasting, the work explores a hypothesis that consumers will frequently overestimate the benefits they envision drawing from new added product features and underestimate the learning costs required to realize those benefits. This hypothesis is tested using a computer simulation in which subjects are trained to play a Pacman-like arcade game where icons are moved over a screen by different forms of tactile controls. Respondents are then given the option to …

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Store Brands: Who Buys Them And What Happens To Retail Prices When They Are Introduced?, Andre Bonfrer, Pradeep K. Chintagunta Oct 2003

Store Brands: Who Buys Them And What Happens To Retail Prices When They Are Introduced?, Andre Bonfrer, Pradeep K. Chintagunta

Research Collection Lee Kong Chian School Of Business

In this paper we study store brand demand behavior by examining a panel of household level and store-level data in five stores located in a competing market area. We seek to address three fundamental questions from this data. First, is there a link between store loyalty and brand loyalty? Second, does store loyalty raise store brand choice probabilities? Third, if a store brand is introduced into a category, what happens to the retail prices of the incumbent brands in the category? We find that store loyalty is negatively associated with brand loyalty, and that store loyalty increases the likelihood of …

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Corporate Social Responsibility Reputation Effects On Mba Job Choice: Controlling For Region Of Origin, David B. Montgomery, Catherine A. Ramus Oct 2003

Corporate Social Responsibility Reputation Effects On Mba Job Choice: Controlling For Region Of Origin, David B. Montgomery, Catherine A. Ramus

Research Collection Lee Kong Chian School Of Business

In a preliminary study with 279 MBA’s from two European and three North American business schools we find that reputation-related attributes of caring about employees, environmental sustainability, community/stakeholder relations, and ethical products and services are important in job choice decisions. We use an adaptive conjoint analysis survey tool to discover the relative weighting of a new set of social responsibility job search criteria, including these attributes with traditional job search criteria like financial package, geographical location, etc. In addition, our results show that more than ninety percent of the MBAs in the sample were willing to forgo financial benefits in …

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Entrepreneurship And Social Endeavours In Singapore, Wee Liang Tan Oct 2003

Entrepreneurship And Social Endeavours In Singapore, Wee Liang Tan

Research Collection Lee Kong Chian School Of Business

Many people would confine entrepreneurship to the business arena and entrepreneurs to profit enterprises. In truth, entrepreneurship can extend to all aspects of human activity as defined by Raymond Kao as “the process of doing something new and/or different to create wealth for oneself and to add value to the society” (Kao, 1993). Apart from entrepreneurship that is solely “for profit” and in the business sphere, there is social entrepreneurship. Social entrepreneurship spans a continuum of community-based enterprises and entrepreneurial activities by volunteers for the good of their communities. It also includes philanthropic acts by successful individuals. While many may …

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Incorporating Diversification Into Risk Management, Mitchell Craig Warachka, A. Purnanandam, Y. Zhao, W.T. Ziemba Oct 2003

Incorporating Diversification Into Risk Management, Mitchell Craig Warachka, A. Purnanandam, Y. Zhao, W.T. Ziemba

Research Collection Lee Kong Chian School Of Business

No abstract provided.

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Multi-Agent Coalition Via Autonomous Price Negotiation In A Real-Time Web Environment, Hoong Chuin Lau, Wei Sian Lim Oct 2003

Multi-Agent Coalition Via Autonomous Price Negotiation In A Real-Time Web Environment, Hoong Chuin Lau, Wei Sian Lim

Research Collection School Of Computing and Information Systems

In e-marketplaces, customers specify job requests in real-time and agents form coalitions to service them. This paper proposes a protocol for self-interested agents to negotiate prices in forming successful coalitions. We propose and experiment with two negotiation schemes: one allows information sharing while the other does not.

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Stock Exchange Governance And Market Quality, Chandrasekhar Krishnamurti, John M. Sequeira, Fangjian Fu Sep 2003

Stock Exchange Governance And Market Quality, Chandrasekhar Krishnamurti, John M. Sequeira, Fangjian Fu

Research Collection Lee Kong Chian School Of Business

We show that organization structure of a stock exchange matters by utilizing the unique setting prevailing in India. India has two major stock markets, the Bombay Stock Exchange (BSE) and the National Stock Exchange (NSE). These two exchanges adopt similar trading systems, trade essentially identical stocks, and follow the same trading hours. However, these exchanges have different organizational structures: BSE is mutualized whereas NSE is demutualized. Using the Hasbrouck [Review of Financial Studies 6 (1993) 191] measure of market quality we show that NSE provides a better quality market than BSE. This result is consistent with the work of Domowitz …

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Does Underwriter Reputation Affect The Performance Of Ipo Stocks?, Chunchi Wu, Sheen Liu, Junbo Wang Sep 2003

Does Underwriter Reputation Affect The Performance Of Ipo Stocks?, Chunchi Wu, Sheen Liu, Junbo Wang

Research Collection Lee Kong Chian School Of Business

In this paper we examine the relationship between performance of the Chinese IPO firms and the reputation of investment bankers underwriting their stocks. Similar to previous studies on well-developed stock markets, we find that the initial return on the first day of trading is strongly positive for Chinese IPO stocks due to underpricing. This initial return is negatively related to the underwriter's reputation, suggesting that the better the reputation of the underwriter, the less underpricing and hence, the lower the initial return of the IPO stock. Extending the analysis to a ten-day window after the first trading day, we find …

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Trading Your Neighbor's Etfs: Competition Or Fragmentation?, Beatrice Boehmer, Ekkehart Boehmer Sep 2003

Trading Your Neighbor's Etfs: Competition Or Fragmentation?, Beatrice Boehmer, Ekkehart Boehmer

Research Collection Lee Kong Chian School Of Business

On July 31, 2001, for the first time in its history, the New York Stock Exchange (NYSE) began trading three unlisted securities. The DIA, SPY, and QQQ are the most actively traded Exchange Traded Funds (ETFs) and are listed on the American Stock Exchange. On April 15, 2002 another 27 ETFs followed. These two events provide a unique experiment for studying the impact of a new entrant on market quality. In contrast to recently revived concerns about the adverse impact of market fragmentation, we document that the NYSE entry leads to a dramatic improvement in liquidity that we attribute to …

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The Effects Of Sexual Orientation On Hirability Ratings: An Experimental Study, Greet Van Hoye, Filip Lievens Sep 2003

The Effects Of Sexual Orientation On Hirability Ratings: An Experimental Study, Greet Van Hoye, Filip Lievens

Research Collection Lee Kong Chian School Of Business

Despite its rising importance, empirical research about sexual orientation in the workplace is still scarce. This experimental study examined if gay candidates, with the same work-related qualities as heterosexual candidates, would be judged less favorably in a personnel selection context. Written candidate profiles were varied in a 3 x 3 between-subjects factorial design, with candidate quality and sexual orientation as experimental variables. Our results indicated that the hirability ratings of 135 selection professionals were based on candidate quality and that no discrimination on the basis of sexual orientation occurred. Implications of these findings and directions for future research are discussed.

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Reasoning About Competitive Reactions: Evidence From Executives, David B. Montgomery, Marian Chapman Moore, Joel E. Urbany Sep 2003

Reasoning About Competitive Reactions: Evidence From Executives, David B. Montgomery, Marian Chapman Moore, Joel E. Urbany

Research Collection Lee Kong Chian School Of Business

Much of the empirical research on competitive reactions describes how or why rivals react to a firm’s past actions, but stops short of examining whether managers attempt to predict such reactions, which we call strategic competitive reasoning. In three exploratory studies, we find evidence of managers’ thinking about competitors’ past and future behavior, but little incidence of strategic competitive reasoning. Competitive intelligence experts and other experienced managers assessment of the results suggests the relatively low incidence of strategic competitor reasoning is due to perceptions of low returns from anticipating competitor reactions more than to the high cost of doing so. …

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Asymptotic Dynamics And Value-At-Risk Of Large Diversified Portfolios In A Jump-Diffusion Market, Kian Guan Lim, Xiaoqing Liu, Kai Chong Tsui Sep 2003

Asymptotic Dynamics And Value-At-Risk Of Large Diversified Portfolios In A Jump-Diffusion Market, Kian Guan Lim, Xiaoqing Liu, Kai Chong Tsui

Research Collection Lee Kong Chian School Of Business

This paper studies the modelling of large diversi ed portfolios in a nancial market with jump-di usion risks. The portfolios considered include three categories: equal money-weighted portfolios, risk minimizing portfolios, and market indices. Reduced-form dynamics driven jointly by one Brownian Motion and one Poisson process are derived for the asymptotics of such portfolios. We prove that derivatives written on a portfolio can be priced by treating the asymptotic dynamics as the underlying process if the number of assets in the portfolio is su ciently large. Analytical and Monte Carlo Value-at-Risk (VaR) can be computed for the portfolios based on their …

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Acceptance Of Golden Rice In The Philippine Rice Bowl, Mark Chong Sep 2003

Acceptance Of Golden Rice In The Philippine Rice Bowl, Mark Chong

Research Collection Lee Kong Chian School Of Business

Few science issues in recent years have elicited such polarized public reactions as modern biotechnology and its agricultural applications. Although a new study conducted by the University of Illinois at Urbana-Champaign and the International Service for the Acquisition of Agri-biotech Applications (Ithaca, NY, USA) indicates that Southeast Asian stakeholders generally hold positive views about agricultural biotechnology.

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Singapore's Regionalization Gambit: Insights Form The Suzhou-Wuxi Experiment, Caroline Yeoh, Jerel Chye Hock Lee, Clare Yenping Lee Sep 2003

Singapore's Regionalization Gambit: Insights Form The Suzhou-Wuxi Experiment, Caroline Yeoh, Jerel Chye Hock Lee, Clare Yenping Lee

Research Collection Lee Kong Chian School Of Business

No abstract provided.

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Reading The Voice Of The Customer: A Content Analysis Of Consumer Reviews, Seshan Ramaswami, Susheela Abraham Varghese Sep 2003

Reading The Voice Of The Customer: A Content Analysis Of Consumer Reviews, Seshan Ramaswami, Susheela Abraham Varghese

Research Collection Lee Kong Chian School Of Business

Online consumer reviews are an increasingly prominent source of interpersonal influence on consumer preferences. We discuss similarities and differences between these reviews and conventional word-of- mouth sources. A content analysis of 180 online consumer reviews reveals important insights for both academics and managers into the consumer search and influence processes.

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Estimating Credit Risk Premia, Kian Guan Lim Sep 2003

Estimating Credit Risk Premia, Kian Guan Lim

Research Collection Lee Kong Chian School Of Business

This paper investigates the nature of the credit risk premium adjustments in the Jarrow-Lando-Turnbull model of credit risk spreads. The adjustments relate the equivalent martingale measures to the empirical measures of unconditional transition probabilities. We provide a modi ed version of the risk adjustment that allows a linear partition of the credit spread into an unconditional default component, a recovery component, and the risk premium adjustment. The risk adjustments are related to conditional default risk, illiquidity risk, and other factors not related to recovery e ects. The log-transform of these risk adjustments can be speci ed as linear regressions on …

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Interorganizational Systems And Competitive Advantages – Lessons From History, Keng Siau Sep 2003

Interorganizational Systems And Competitive Advantages – Lessons From History, Keng Siau

Research Collection School Of Computing and Information Systems

Global business constantly faces radical transformations stemming from advances in information technology (IT). The concept of gaining competitive advantages by linking information systems across organizations (e.g., supply chain integration) has taken on an overtone of dogma in many business circles. Such electronic linkages are known as Interorganizational Systems (IOS). Lately, the growing importance and easy accessibility of the Internet have propelled IOS to a new height. Undoubtedly, IOS can have a great impact on organizational performance and industry structure. However, IT such as the Internet is readily available to all companies, and most IOS concepts can be easily replicated. Followers …

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Antecedents Of Consumer Trust In B-To-C Electronic Commerce, Dan J. Kim, Donald L. Ferrin, H. Raghav Rao Aug 2003

Antecedents Of Consumer Trust In B-To-C Electronic Commerce, Dan J. Kim, Donald L. Ferrin, H. Raghav Rao

Research Collection Lee Kong Chian School Of Business

Despite the importance of trust in electronic commerce, there is insufficient theory and evidence concerning the determinants of consumer trust about an Internet vendor’s trustworthiness, and the influence of consumer trust on the consumer’s purchasing intention. The purpose of this study is to: i) develop a theoretical framework identifying the antecedents of a consumer’s trust and purchase intention, ii) test the proposed model using Structural Equation Modeling, analyzing Internet consumer behavior data collected via a Web survey, and iii) provide theoretical and managerial implications. The results of the study show that consumers’ disposition to trust, privacy protection, security protection, consumers’ …

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Erp Implementation: Chief Information Officers’ Perceptions Of Critical Success Factors, Fiona Fui-Hoon Nah, Kathryn M. Zuckweiler, Janet Lee-Shang Lau Aug 2003

Erp Implementation: Chief Information Officers’ Perceptions Of Critical Success Factors, Fiona Fui-Hoon Nah, Kathryn M. Zuckweiler, Janet Lee-Shang Lau

Research Collection School Of Computing and Information Systems

This article reports the results of a survey of Chief Information Officers (CIOs) from Fortune 1000 companies on their perceptions of the critical success factors in Enterprise Resource Planning (ERP) implementation. Through a review of the literature, 11 critical success factors were identified , with underlying subfactors, for successful ERP implementation. The degree of criticality of each of these factors were assessed in a survey administered to the CIOs. The 5 most critical factors identified by the CIOs were top management support, project champion, ERP teamwork and composition, project management, and change management program and culture. The importance of each …

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