http://dr.lib.sjp.ac.lk/handle/123456789/10929 2026-05-02T22:02:00Z http://dr.lib.sjp.ac.lk/handle/123456789/10950 TRANSFORMATIONAL LEADERSHIP AND SUPPLY CHAIN ORIENTATION: AN EMPIRICAL DESCRIPTIVE STUDY IN MANUFACTURING RELATED BUSINESS SECTOR IN SRI LANKA Warnakulasooriya, B.N.F. The challenge of cultivating or developing supply chain oriented culture is often primarily an organizational one and depends on top management leadership. Strategic leader‟s vision plays a critical role in shaping an organization‟s direction, values and orientation. He/she must first realize the significance of strategic, operational and market impact of applying supply chain oriented culture to his/her firm. Literature suggests that transformational leaders help to realign the values and norms of their organization, to accommodate and promote both internal and external change when necessary, and to influence major changes in organization members and build commitment for the organization‟s objectives. Despite the theoretical and managerial importance ascribed to the transformational leadership (TL), less emphasis has been devoted to empirically test whether or not it has direct influence over the development of supply chain oriented culture. Thus, this study attempts to address the question whether the TL style would foster a supply chain orientation (SCO) inside the firms directly involved in the supply chain. The major objective of this study is to examine the association between TL style and the degree of SCO. The study examined a descriptive hypothesis where an association between TL and SCO was inferred only. It does not examine the causal hypothesis, where the determination of degree of SCO by TL was inferred. The single cross sectional design was employed to collect data through a self administered questionnaire. Unit of analysis was the manufacturing related firms. A sample of 45 firms was randomly selected from the registry of the Colombo Stock Exchange2007. Results indicate an association between TL and SCO in manufacturing related organizations though the contribution of each dimension of the TL varies. 2012-01-01T00:00:00Z http://dr.lib.sjp.ac.lk/handle/123456789/10949 CAUSALITY TESTING AND WAGNER’S LAW: THE CASE OF SRI LANKA Sriyalatha, M. A. K. This paper presents an empirical investigation into the validity of Wagner‟s Law for Sri Lanka over the period 1959-2010. The research methodology employed includes testing for unit root, with the Augmented Dickey-Fuller (ADF) test, the use of a Vector Autoregression (VAR) model for the implementation of the Granger causality test, and cointegration tests according to Johansen-Juselious. The cointegration tests indicate that there is a long run relationship between public expenditure (TE) and Gross Domestic Product (GDP), and the ratio of total government (public) expenditure to gross domestic product (TE/GDP) and GDP (First and Six version of Wagner‟s Law). Both eigenvalue and trace tests indicate that there is one cointegrating vector. Although the results reported herein do not reveal uniformity among the six versions of Wagner‟s Law, the results show an apparent prevalence of the direction of causality from growth of GDP to public expenditure. For the first three versions of Wagner‟s Law and the fifth version appear that Granger- causality runs one-way from GDP to TE, GDP to Total Consumption Expenditure (TCE), per capita gross domestic product (GDP/POP) to TE, and (GDP/POP) to per capita government expenditure (TE/POP), respectively. According to empirical findings of this study, it is possible to say that the growth of public expenditure in Sri Lanka is depended on and determined by economic growth as Wagner‟s Law 2012-01-01T00:00:00Z http://dr.lib.sjp.ac.lk/handle/123456789/10948 AN EMPIRICAL STUDY OF SOFTWARE DEVELOPMENT FAILURES IN SRI LANKA Perera, A. J.; Amaratunge, S. P. P. Software development projects are considered as a unique entity in terms of project management due to the inherent attributes they encapsulate, thus making them distinct and susceptible to failure. Therefore, the importance of software project risk management is emphasized where the identification of the factors which affect software development projects to fail being the main component. This survey-based study focuses on identifying the factors that affect software development failures and the causes of these factors in Sri Lankan software development companies. Twenty-seven factors affecting software development failures were identified using a stringent scientific methodology and were tested to ascertain their validity, importance and the causes in terms of the Sri Lankan context using an interview based questionnaire. Twenty-five software development companies which belong to the software exporters‟ association were selected for data collection, and the gathered data were analyzed to ascertain the significance to the defined objectives using statistical tools. Misunderstanding of user requirements, poor project management skills of managers, and the lack of communication between the members of the software development team were identified as the top three factors affecting software development failures in Sri Lanka, while the lack of proper communication between the development team and the customer, poor project management knowledge of managers, and lack of proper planning were identified as the main phenomena which cause these factors to originate in software development projects in Sri Lanka. 2012-01-01T00:00:00Z http://dr.lib.sjp.ac.lk/handle/123456789/10933 THE ANALYSIS OF DISPOSITION EFFECTAND PRICE REVERSAL TAKING UNOBSERVABLE FACTORS INTO CONSIDERATION: WITH SPECIAL REFERENCE TO THE SRI LANKAN STOCK MARKET Madduma Bandara, Y. M. H. P. Disposition Effect, which has been popularized and well documented as one of the various explanations for the persistence of momentum in the returns of the stocks over various time horizons was first documented by Shefrin and Statman (1985). Accordingly, the disposition effect refers to the tendency of investors to realize their profits too early and reluctance to realize their losses that arise out of changes in stock prices. The downward pressure on the prices of winner stocks due to higher growth in trading volume could lead to a price reversal, which ultimately results in losers outperforming winners for a specific time. This price reversal tendency could be influenced by many factors of which some are observable and, some, unobservable. Consideration of observable factors while disregarding those unobservable variables may result in producing biased and counterintuitive estimates by cross sectional and time series analyses. Based on the studies by Cressy and Farag (2009, 2010) this study examines by using Fixed Effects Model which takes unobservable factors into consideration, whether past losers outperform past winners. Using daily data from the Sri Lankan stock market, a sample of 20 stocks that faced a drastic 1 day price change was taken to examine price reversals. Even though cross section and pooled regression results yield insignificant results, fixed effects model strongly supports price reversals of the winning and losing stocks. These results suggest that the unobservable time specific together with firm specific factors play a major role in explaining price reversals in the Sri Lankan stock market. 2012-01-01T00:00:00Z