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(2007)Conference PaperThe paradigm of service-oriented computing (SOC) has emerged as an architectural approach to flexibility and agility, not just in systems development but also in business process management. There is, however, a paucity of critical research assessing the strategic impact of SOA on the competitiveness of organizations. Some research literature in strategic management indicates that firms may gain a competitive advantage in rapidly changing market environments by concentrating on their dynamic capabilities – i.e., product flexibility and agility in organizational transformation in response to rapidly changing market conditions and customer requirements. The intent of this paper is to analyze the conduits through which service-oriented architectures (SOAs) may exert influence on dynamic capabilities within firms. The results could potentially assist in evaluating if and how the adoption of service-oriented architecture may help achieve key dynamic capabilities, giving the enterprise a competitive edge.
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(2007)Conference PaperThe domain of scholarly publishing is undergoing rapid change. Change has been instigated and produced by the Internet and open access systems – such as disciplinary and institutional repositories and open access journals. However traditional scholarly publishing is strengthening its hold over prestigious journals thus resisting change. How then does the change come about? An attempt at answering this question led us to examine an institutional repository initiative in a University. As we identified and followed the actors (researchers, research papers, reward systems, technology, library staff, etc.) we saw the emergence of new publishing practices and the forces preserving the old ones. By adopting Actor Network Theory (ANT) we came to understand the materiality, relationality and ambiguity of processes of reassembling scholarly publishing. This paper thereby informs a wider debate and shaping of open access and scholarly publishing.
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(2007)Conference PaperScholarly publishing is concerned with the distribution of scholarly information through journals and conferences and other information media. As such scholarly publishing can be understood as a specific part of the information industry. With the advent of advanced information technologies many possible technologically enabled futures have been posited for scholarly publishing. This paper describes the current systems, processes and actors. While technological advancements appear to be enabling access to scholarly publications, economic conditions appear to limit access. In addition, a number of alternatives, such as open access are currently in play and there is uncertainty regarding the future of the scholarly publishing system. The system appears to be in the process of being reassembled. Conceptual models of the traditional, the electronic, and some possibilities for future developments in scholarly publishing are proposed, as are topics for future research in the information systems domain.
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(2007)ThesisThis dissertation presents an examination of the trading behaviour of active Australian fund managers. The thesis begins with an analysis of how fund manager trades relate to stock returns in the past, the present, and the future. The dissertation next proceeds to investigating how fund size affects fund performance, trading and portfolio construction. Finally, using earnings announcements as the locus for trading sequences, we analyse the nature of the information used by fund managers to predict stock returns. This research is presented in the form of three essays. The first essay investigates how active fund manager trades relate to stock returns. Using a unique database of daily transactions from Australian equity managers, we document that our sample of institutional investors exhibit statistically and economically significant predictive power in forecasting future stock returns over the ten days following their trades. Furthermore, detailed analysis indicates that manager style is important in understanding the link between institutional trading and stock returns. The essay finds growth-oriented managers are momentum traders, while style-neutral and value managers are contrarian. Further, the contemporaneous relation between institutional trading and returns depends on trade size, broker use, and investment style. Finally, the study documents that trades and returns are inversely related for value/contrarian managers and directly related for style-neutral and growth managers. The second essay presents an analysis of how fund size affects investment performance. Recent studies find evidence that small funds outperform large funds. This fund size effect is commonly hypothesized to be caused by transaction costs. Due to the lack of transactions data, prior studies have investigated the transaction costs theory only indirectly. This study however, analyses the daily transactions of active Australian equity managers and finds aggregate market impact costs incurred by large managers are significantly greater than that Finally, the third essay examines the nature of price-sensitive earnings information used by package formation and portfolio characteristics consistent with transaction cost intimidation. An analysis of the interaction between transaction cost intimidation and the fund size effect documents that large managers pursue a highly active trading strategy, and accordingly suffer more from the fund size effect than is the case for large funds following a less active trading strategy. This suggests the fund size effect is related to transaction costs as trading activity is a good proxy for expected market impact. Finally, the third essay examines the nature of price-sensitive earnings information used by fund managers to trade. While a number of recent mutual fund performance studies find data, prior studies have investigated the transaction costs theory only indirectly. This study however, analyses the daily transactions of active Australian equity managers and finds aggregate market impact costs incurred by large managers are significantly greater than that Finally, the third essay examines the nature of price-sensitive earnings information used by package formation and portfolio characteristics consistent with transaction cost intimidation. An analysis of the interaction between transaction cost intimidation and the fund size effect documents that large managers pursue a highly active trading strategy, and accordingly suffer more from the fund size effect than is the case for large funds following a less active trading strategy. This suggests the fund size effect is related to transaction costs as trading activity is incurred by small managers. Furthermore, large managers exhibit preferences for trade evidence of outperformance relative to suitably constructed benchmarks, limited research exists as to whether such outperformance is due to privately collected information, or merely expedient interpretation of publicly released information. In this essay an examination of the trade sequences of fund managers around earnings announcements is performed, and evidence is presented revealing an increased Occurrence of buy-sell trade sequences around good announcements and vice versa for bad announcements. The results also show an increase in the frequency of fund managers not trading before announcements, only to subsequently purchase during good announcements. Taken together, this evidence suggests managers are reliant on private information before earnings announcements, as well as them engaging in 'interpretation' of earnings announcements when they do not receive a private signal.
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(2007)ThesisThe professional profile of researchers is established through communication of scientific work practices, leading to the establishment of a scholarly identity. Understanding scholarly identities is currently addressed through a conceptualisation of research narrative mechanisms. Citation and citing practices are a central component of scientific communication work practices. Therefore understanding these formal communication practices of researchers through their citing behaviours may contribute to the building of scholarly identity. This study is undertaken to understand whether scholarly identity could be informed through the use of citation identities. Studies on the citation identities of individuals were conducted, using authors working in the area of Consciousness, which provided a diverse field of participants for the testing of citation analysis techniques. This is accomplished through methodological development and further examined using a combination of field-level and individual-level analyses. A new methodology was developed for the generation of citing identities, based on the calculation of the Gini coefficient and the citee-citation ratio of authors' citing profiles. The resulting relationship was found to have high levels of consistency across a heterogenous set of researchers. An exploration of identification of author characteristics was subsequently undertaken using the new methodology and existing citation analysis techniques. The techniques were successful in identifying departures from conventional citation practice, highlighting idiosyncrasies well, but otherwise understanding of scholarly identity through citation analysis was only marginally successful. A portion of the difficulty of achieving clarity was the complexity of the Consciousness author set, which was useful for establishing broad applicability of a new methodology, but poor for judging its successful application. In summary, definition of citing identity type offers possibilities for improving the understanding of scholarly identity, but will require further methodology development to reach its full potential.
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(2007)ThesisAccounting numbers are not only the products of peripheral economic events, but, by and large, can be consciously influenced from the effects of calculated business decisions and the selective applications of alternative reporting procedures. In academic parlance, the term accounting quality, or lack thereof, is often used to describe the extent to which these convoluting influences create a disparity between economic fundamentals and their numerical portrayal. This doctoral thesis speaks to three aspects of accounting quality; (i) Earnings Thresholds: A Re-Examination of the Role of Earnings Management, (ii) Earnings Manipulation and the Investigation of 'Red Flag' Accounting Ratios, and (iii) An Empirical Analysis of Standard and Poor's (S&Ps) Core Earnings metric. Each topic is outlined in a separate research paper.
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(2007)ThesisThe commissariat was the main economic drivers in the colonial economy between 1788 and 1835. It is not frequently discussed in the literature and it was Professor N. G. Butlin who challenged economic historians to write the story of the commissariat in operation. This thesis relates the story of the role and operations of the commissariat in colonial NSW. The commissariat filled many roles, ranging from government store, to financial services provider and a quasi-treasury. It was the main purchaser of local production from local settlers, and offered a novel and creative 'barter system' by exchanging store receipts for goods and services received from local settlers
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(2007)ThesisI examine the extent to which accounting information is reflected in market prices at different points in time. The efficient market hypothesis implies that price always reflects (value-relevant) accounting information, based on the assumptions of rational investors and costless arbitrage. I examine the time-series relation between price and value in two studies which are motivated by potential shortcomings of these assumptions. First, there is significant debate regarding the rationality of equity investors during the late 1990s. I therefore contrast the historical time-series relation between price and value with that of the 1990s, and show that the historical tendency of price to converge towards value breaks down during this period. Second, I examine the impact of the lack of close substitutes - an arbitrage cost - on the time-series relation between price and value. I find some evidence of a positive association between this arbitrage cost and both the level and the duration of the disparity between price and value. My results provide empirical support for the hypothesis that price requires time to reflect (accounting) information and has implications for research that assumes that prices are measured without error.
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(2007)ThesisThis thesis focuses on the development of a forecasting model for short- to medium-term electricity spot prices, based on modelling the dynamics of the supply and demand functions. It is found that the equilibrium assumption frequently adopted in electricity price models does not always hold; to overcome this problem, a notional demand process derived from the market clearing condition is proposed. Not only is this demand process able to capture all the price-affecting factors in one variable, but it also allows the equilibrium assumption to be satisfied and a spot price model to be built, using any appropriate form of hypothetical supply function. In addition, this thesis presents a model for approximating and modelling the bid stacks by capturing the points that govern their shape and location. Integrating these two models provides a realistic model that has a mean absolute percentage error of approximately 19% and 24% for week- and month-ahead forecasts respectively, when applied to the New South Wales (NSW) half-hourly electricity spot prices. Additionally, the density forecasting evaluation method proposed by Diebold et al. (1998) is employed in the thesis to assess the performance of the model. Besides the development of a spot price model, a two-part empirical study is made of the prices of NSW electricity futures contracts. The first part of the study develops a method based on the principle of certainty equivalence, which enables the market utility function to be recovered from a set of futures market quotes. The method is tested with two different sets of simulated data and works as expected. However, it is unable to obtain useful results from the NSW market quotes due to the poor data quality. The second part uses a regression method to investigate the relationship between futures prices and the descriptive statistics of the underlying spot prices. The result suggests that futures prices in NSW are linear combinations of the median and volatility of the final payoff.
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(2007)ThesisMajor problems are identified with the use of survey methodology to examine the relationship between market orientation (MO) and firm performance. The research, as it is argued, tells us more about managers' sense-making processes and causal attributions than whether and under what conditions MO drives performance, yet one way causal interpretations are still prevalent in the literature. The psychological mechanisms underlying managers' perceptions are identified and alternative causal paths specified for interpreting prior research results are proposed that also account for otherwise troublesome results. An exploratory experiment is designed to calibrate the extent of managers' attribution biases which is the most important part of the sensemaking framework. Different levels of performance, MO and environmental turbulence are manipulated in case scenarios. The results confirm a culture-centered view of MO and a strong psychological impact of performance on perceived environment turbulence. A multi-method view of studying the MO-performance link is proposed in the final part of the paper.
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