Business

Publication Search Results

Now showing 1 - 10 of 202
  • (2011) Bednall, Timothy; Bove, Liliana
    Journal Article
    Although research into blood donor motivation abounds, most studies have typically focused on small sets of variables, used different terminology to label equivalent constructs, and have not attempted to generalize findings beyond their individual settings. The current study sought to synthesize past findings into a unified taxonomy of blood donation drivers and deterrents, and estimate the prevalence of each factor across the worldwide population of donors and eligible non-donors. Primary studies were collected and cross-validated categories of donation motivators and deterrents were developed. Proportions of first-time, repeat, lapsed, apheresis and eligible non-donors endorsing each category were calculated. In terms of motivators, first-time and repeat donors most frequently cited convenience, prosocial motivation and personal values; apheresis donors similarly cited the latter two motivators. Conversely, lapsed donors more often cited collection agency reputation, perceived need for donation, marketing communication and incentives as motivators. In terms of deterrents, both donors and non-donors most frequently referred to low self-efficacy to donate, low involvement, inconvenience, absence of marketing communication, ineffective incentives, lack of knowledge about donating, negative service experiences, and fear. The integration of past findings has yielded a comprehensive taxonomy of factors influencing blood donation, and has provided insight into the prevalence of each factor across multiple stages of donors’ careers. Implications for collection agencies are discussed.

  • (2012) Mukherjee, Partha
    Thesis
    This study examines how emerging market firms (EMFs) develop capabilities to leapfrog in the knowledge intensive global information technology (IT) industry. Academic literatures have thus far focused on globalization of large multinational companies (MNCs) from developed countries, mainly from the OECD. While firms from the OECD are well endowed in resources, firms from developing countries are generally resource poor and their establishment, development and international expansion have taken place within an institutional environment that is different from those found in western economies. Hence how resource poor EMFs learn to transform comparative advantages into dynamic firm-specific capabilities deserves attention. The study explores how Indian IT firms “moved up the value ladder,” moving out of the “low road” where the barriers to entry are low and competition is based mainly on price and squeezing wages, to the “high road” where competition is based on differentiation. A combination of qualitative and quantitative methodology is used. The qualitative part focused on inductive case study research, moving along observation, categorization and association, finally giving rise to constructs and models. The quantitative part entailed deductive econometric studies on 703 companies using panel data method, testing hypothesis to identify which factors contribute to globalization of EMFs. The findings reveal that globalization of EMFs is an evolutionary process and in each phase of evolution, the EMFs progressively learn from their linkages with MNCs and leverage them to globalise rapidly. Through linkages with MNCs, EMFs gained access to markets, technology, and reputation. The research identified the distinctive capabilities acquired by the EMFs in each phase of their capability lifecycle. Linkages with and learning from international and domestic innovation networks transformed EMFs’ business model and upgraded their capabilities. The study shows that dynamic capability in the form of powerful intellectual property enabled EMFs to evolve from service provider to a partner status. Findings of this study present a novel and contemporary insight on how EMFs evolve to develop dynamic capability, which enables them to leapfrog in a fast changing technology space. The results challenge the view that the Indian software industry presents the classic problem of locking-in a low road of the innovation trajectory.

  • (2010) Wilson, Concepción S.; Kennan, Mary Anne; Willard, Patricia; Boell, Sebastian K
    Journal Article
    This paper investigates the academization of library and information science (LIS)educators in Australia from 1959 to 2008. Extensive data document the distribution of these academics in Australian higher education institutions over fifty years: from a slow beginning in the 1960s, to rapid growth in the 1970s, relative stability in the 1980s, and a persistent decline from the 1990s. Results of other characteristics of Australian LIS educators over the fifty-year period are presented including: previous positions held before entering academia, what and where academic qualifications were obtained, academic positions/ranks by gender, mobility within Australian higher education institutions, and years spent as Australian LIS educators. Although there has been a steady decline in the number of Australian LIS educators since the 1990s, the level of academic qualifications and percentage with doctorates have risen, thus conforming to a major requirement of academia; however, the relative decline in junior academic positions is a worrying trend. The analysis of changed characteristics over time helps define who Australian LIS academics are, and additionally provides data that contributes to LIS academic workforce planning.

  • (2010) Boell, Sebastian K; Cecez-Kecmanovic, Dubravka
    Journal Article
    Conducting a literature review is a vital part of any research. Library and information science (LIS) professionals often play a central role in supporting academics in their efforts to locate relevant publications and in teaching novice researchers skills associated with literature reviews. This paper examines literature review processes with the aim to contribute to better understanding of their complexity and uncertainty and to propose a new approach to literature reviews that is capable of dealing with such complexity and uncertainty.

  • (2010) Boell, Sebastian K; Cecez-Kecmanovic, Dubravka
    Conference Paper
    This paper investigates the concept of information. It follows different approaches for defining information before discussing a knowledge-in-action view on information as part of sociomaterial practices. Drawing from Stamper’s (1991) extended semiological framework the paper proposes its reinterpretation to study information as a sociomaterial phenomenon. The paper further argues that rather than focusing on finding general definitions for information, intellectual efforts should concentrate on characteristics and attributes of information. Combining earlier efforts in this direction different attributes of information such as novelty, time dependence, or goal relevance. are introduced. Locating those attributes within Stamper's extended semiological framework helps to identify different aspects of sociomaterial context affecting information. Understanding and paying attention to information through its attributes can, therefore, provide guidance for researching information and possibly help advancing the development of information systems.

  • (2010) Kennan, Mary Anne; Cecez-Kecmanovic, Dubravka; Underwood, Jim
    Journal Article
    This article explores some of the issues associated with giving non-human actors a voice of their own in actor-network theory based research. What issues do we face in doing so? Does doing so increase understanding of the issue to hand, bring to life and make more accessible and interesting the stories of these actors? Or does this anthropomorphism detract from the issues at hand? We discuss these broader issues and then present some findings from an ANT field study which investigated the implementation of institutional repositories and their relations with the spread of open access to scholarly publishing. We experiment with allowing some of the non-human actors to speak for themselves. We conclude with a discussion which opens the debate: does giving voice to non-human actors bring them to life and make them better understood as intimately entangled with each other and human actors in the sociomaterial practices of the everyday? And what are the challenges in doing so?

  • (2010) Robinson, Linda Jane
    Thesis
    Simultaneous achievement of both sales and service performance goals by retail service teams is of critical importance to retail organisations. The success of retail organisations as a whole is essentially reliant on the combined sales and service efforts of frontline service teams where issues of performance management and goal setting central to achieving high performing teams. Yet, with much of the current literature centred on the processes and outcomes of teamwork and team behaviours, little attention has been paid to the psychological foundations of teams that guide team performance. Thus, this study identifies team-level perceptions of ability (team efficacy) and motivation (team goal orientation) as critical components of retail service team performance and three key questions are addressed: (i) what are the antecedents of team efficacy?; (ii) what is the effect of team goal orientation on sales and service performance?; and (iii) how do the constructs of team efficacy and team goal orientation interact to influence the sales and service performance of retail service teams? This research reviews the retail service team context, social cognitive theory and goal theory to construct a conceptual model of retail service team performance. The model was then tested using data gathered from 13 in-depth interviews and the partial least square analysis of a quantitative survey of 319 retail service teams. Results indicate that integrating performance awareness tasks and promoting team connectedness develops strong efficacy beliefs that positively influence sales and service performance. In addition, the results support the argument for a three-dimensional model of team goal orientation through identifying differing effects of the two performance dimensions on team performance. Theoretically, the most significant contribution of this research is that it offers insight into team-level concepts only previously explored at the individual level of analysis, with the study presenting empirical evidence of team efficacy and team goal orientation as drivers of team performance in the retail services context. Managerial contributions of the research include guidance on how to direct resources towards improving team efficacy and managing team goal orientation to most effectively improve both the sales and service performance of retail service teams.

  • (2010) Mun, Xiuyan
    Thesis
    This dissertation is primarily concerned with mixture models for high-dimensional financial data. New flexible mixture models are introduced and implemented with fast and effective optimization routines. The stochastic gradient approach uses random gradients to update the parameters of the mixture model improving the chance of the iterates converging to a higher mode. Chapter 2 provides the details of the stochastic gradient optimization routines used. Chapter 3 suggests two new multivariate density estimators, namely the marginal adaptation mixture of normals and the mixture of normals copula. Their performances are compared with a few recent popular models such as the skewed-t model. Chapter 4 discusses covariance estimation for high dimensional data. The aim of the chapter is to improve the estimation of covariance matrices by using mixture shrinkage priors. This chapter also shows how to apply the priors to the simultaneous estimation of several covariance matrices such as in the case of mixture of normals models. Chapters 5 and 6 consider the estimation or fitting of models to time series data, when the models may experience a small number of structural breaks. Chapter 5 looks at univariate data and Chapter 6 considers multivariate data. In particular, Chapter 6 shows how to estimate a Gaussian vector autoregressive model subject to occasional structural breaks using a mixture of experts framework.

  • (2011) Loh, Tze Hua
    Thesis
    This thesis examines the trading behaviour of investors in the equities market of the Singapore Exchange (SGX). One of the main aims is to better understand how the heterogeneity of market participants with their strategies may be linked to the properties of order book dynamics. The conclusions drawn from the three essays could potentially influence the decisions of regulators, exchange operators, and investors in securities markets. The first essay investigates client order execution strategies in terms of how they place orders across the limit order book. The results suggest that a multi-price trading strategy, where investors place a “network” of buy and sell limit orders simultaneously, is a viable strategy and might even be profitable enough for investors to persist with the strategy. It is also shown that institutional investors tend to place more aggressive orders than retail investors. The second essay examines the effects prior order transactions, limit order book attributes, and market variables have on order submission and cancellation choices. It is found that while order transactions have a positive same order type order-by-order serial correlation, when order flow is aggregated by time intervals, the correlation of the changes in aggregated order flow of the same order type between consecutive time intervals is negative even over short time periods of five seconds. The positive order-by-order serial correlation for orders of the same type is present regardless of whether the incoming transaction is by an institutional investor or a retail investor. The final essay studies how changes in the limit order book and market conditions affect the aggressiveness levels of orders after their submissions and thus influence order cancellations. Traders who place orders near the top of the order book actively monitor those orders and decisions to cancel orders are significantly affected by changes in order book conditions such as order depth, stock volatility, market volatility, price returns, and net trade imbalance. In managing and balancing non-execution risk and option-to-trade risk, the probability that traders cancel their orders also differs depending on whether their orders have moved further away, remain unchanged, or are nearer to the best same-side prices.

  • (2012) Kwan, Amy
    Thesis
    Recently, there has been widespread concern over the growth of new ‘dark’ trading venues in equity markets. It is important to understand the implications of these changes for market quality and the impact of different trading rules, in respect of dark pools, on the relative competitive positions of trading venues. Compared to exchange trading, dark venues are characterised by pre-trade opacity, exemptions from fair access requirements and the frequent use of sub-penny pricing. This dissertation shows that these unique features influence the ability of new and existing trading venues to compete for order flow and may have long term consequences for market quality. First, I investigate the role of sub-penny pricing in the competition for order flow between venues that differ on the basis of tick size regimes. I find that order flow migrates to dark venues offering sub-penny pricing when prices are constrained by the minimum 0.01 USD tick size on the exchange. The implication of the finding is that larger minimum tick sizes generally put trading venues at a competitive disadvantage notwithstanding the benefits of discouraging free-riding. Second, I show that dark venues may use their unique features to attract uninformed clients, resulting in a segregation of informed and uninformed order flow. As a result, dark market fragmentation is associated with lower market quality, evidenced by higher transaction costs and lower price efficiency. However, the execution of large transactions on dark venues does not harm market quality. Third, I test whether non-displayed limit order books are more attractive to informed traders than crossing networks that cross only at the midpoint because traders can use discretionary pricing to reduce non-execution risk. The results show that trades executed at non-discretionary prices are more informed than trades executed at the midpoint of the National Best Bid and Offer. This dissertation contributes to the long-standing debate on market fragmentation versus market consolidation. The results also have policy implications for market regulators, who are required by their published mandates to assure themselves before approving market design changes that the changes enhance market quality, taking account of both market efficiency and market integrity.