Research Publications Authored by SLIIT Staff
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This collection includes all SLIIT staff publications presented at external conferences and published in external journals. The materials are organized by faculty to facilitate easy retrieval.
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Publication Open Access ESTIMATING WILLINNESS TO PAY FOR WETLAND CONSERVATION: A CONTINGENT VALUATION STUDY OF MUDUN ELA AND KALU OYA WATERSHEDS, WESTERN PROVINCE SRI LANKA(International Conference on "Water, Environment and Climate Change: Knowledge Sharing and Partnership, 2018-04-10) Jayathilaka, R; Serasinghe, PWetland ecosystems are often neglected or undervalued. Few people realize the range of products derived from wetlands and their freshwater habitats. There are a number of social and economic benefits of wetlands and the wetlands are in a serious risk today. Specially, in relation to human activities and in inconvenient utilization, wetlands around the globe are being modified, reclaimed and over-exploited due to high levels ofresource consumption, land conversion and also upstream developments that alter the quality and flow of water that feeds into them. Decision makers often have a little understanding of the environmental value of wetlands because wetlands are often perceived as having little or no value compared with uses that yield more visible and immediate economic benefits. In this circumstances, revelation and recognition of value of wetlands and thereafter the valuation their importance has been an essential matter which helps to protect such habitats and also it is useful to utilize the benefits of wetlands in a proper management. The objective of this study is to estimate the willingness to pay (WTP) for conservation of MudunEla and KaluOya watersheds, Western province Sri Lanka using Contingent Valuation Method (CVM). Respondents were randomly selected for data collection through face-to-face interview. The Tobit model was used to estimate the entrance fee to for conservation. The marginal effects on probabilities in the tobit model suggest that postgraduate degree holders, households who are using wetland as education, research and agricultural purposes play significant roles in residents' WTP for protect wetland. Thus, higher educated households was found to have a positive response on willingness to pay for protect wetlands in the country. On the other hand, households who were used wetland for agricultural purposes have a negative response on willingness to pay for wetland protect practices.Publication Open Access Trade Liberalisation and Poverty in South Asia(Taylor & Francis Books, 2011) JAYATHILAKA, R; DE MEL, DThe relationship between trade and poverty has long been debated in academic and policy circles. The purpose of this chapter is to contribute to this debate through an in-depth study of the experience of Sri Lanka, the first country in South Asia to break away from the protectionist past by embarking on a decisive process of economic opening in 1977. During the first decade after independence in 1948, Sri Lanka continued with a liberal trade regime, until growing balance of payments problems induced a policy shift towards protectionist import substitution policies from the early 1960s. By the mid-1970s the Sri Lankan economy had become one of the most inwardoriented and regulated outside the group of centrally planned economies. In 1977, Sri Lanka responded to the dismal economic outcome of the closedeconomy era by embarking on an extensive economic liberalisation process, becoming the first country in the South Asian region to do so. Despite major macroeconomic problems and political turmoil, market-oriented reforms have been sustained over the ensuing years. Sri Lanka is now classified as one of the few developing countries outside East Asia that have achieved a clear policy shift from the entrenched import-substitution era. This policy transition has brought about notable structural changes in the economy (Athukorala and Rajapatirana 2000; World Bank 2005b; Kelegama 2006). However, the impact of liberalisation reforms on the incidence of poverty and poverty reduction has not yet been systematically studied. Therefore, the main objective of this chapter is to systematically examine the link between trade liberalisation and poverty reduction through employment channels. The chapter is arranged as follows: Section 2 provides an overview of trade policy shifts and the role of trade in the economy. Section 3 surveys the incidence and patterns of poverty. Section 4 examines key channels through which trade policy impacts on poverty. Section 5 examines some cross-cutting issues. Section 6 reports the results of an econometric analysis undertaken to examine the determinant of poverty at the household level with emphasis on the impact of trade policy. The chapter ends with a summary of key findings and policy inferences.Publication Open Access The Effects of Natural Disasters: A Study to Sustain Paddy and other Seasonal Crop Farmers in Sri Lanka(DEPARTMENT OF ECONOMICS AND STATISTICS FACULTY OF ARTS, UNIVERSITY OF PERADENIYA, 2019-10) Deshapriya, R. D. N. L; Lakpriya, K. A. D. L; Pathiraja, P. M. D. G. T; Wijesiri, P. G. N. A. H; Jayathilaka, RThe United Nations (UN) Development Programme set out seventeen sustainable development goals (SDGs) to be achieved by the UN member countries in 2030. One such goal, SDG 8 is about decent work and economic growth, where the agriculture sector can play a wider role for economic growth by reducing unemployment in the country. Worldwide, various factors can adversely affect many occupations, especially with unfavorable effects on those engaged therein. Previous researchers have shown that natural disasters cause impacts in terms of income volatility, particularly negative income shocks regardless of the cause whereas risks force households in developing countries to lower their expenditure on health and education. Mottaleb et al. (2013) identified natural disasters impacting on household income and expenditure volatilities in Bangladesh as well. Ministry of Disaster Management (DM) in Sri Lanka identifies flood and drought as the major types of natural disasters affecting Sri Lanka (Karunarathna and Athukorala, 2018). Nevertheless, Tsunami has also been a major issue in the recent past. Its likelihood of occurrence is rather small, but it causes high damage. Ancient Sri Lanka was a country with selfsufficiency. Currently, an open market economy, Sri Lanka’s dependency is higher on imports, partly due to insufficient local production. In addition, over the years cultivation has declined due to various reasons. The International Trade Administration (2018) states that in Sri Lanka, over 25% are employed in the agricultural sector, which contributes 6.9 % to Gross Domestic Production (GDP). This indicates the magnitude of any adverse impacts to the agricultural sector. In Malaysia, Hein (2019) discussed the response to extreme disasters and climate change when the government intervenes to mitigate same and spread awareness of climate changes. However, in Sri Lanka no long term plan is in place to mitigate or at least minimize the effects of natural disasters, which can lead to inequalities in the population. The findings/results of this study can assist Sri Lanka to initiate policies to reduce inequality among farmers, and thereby improve and sustain the agricultural practices in Sri Lanka; and thus to achieve SDG 8 as set out by the UN.Publication Open Access The Impact of the Proportion of Female Directors on Firm Performance: An Approach to Achieve Gender Equality(Postgraduate Institute of Humanities and Social Sciences (PGIHS) University of Peradeniya, 2019-10) Zainab, A. C. H. F; Senavirathna, H. D. N. N; Priyashantha, W. M. S; Yasarathna, T. A. D. K; Jayathilaka, RSri Lanka is well known as a country that ended a 30-year civil war of which the scars have not yet healed. The end of this brutal civil war was also a beginning of a new era of peace and development. Sri Lanka can only achieve sustainable development via long-term investments in economic, human and environmental capital. The inclusion of a focus on gender equality as the 5th goal within the Sustainable Development Goals (SDGs) illustrates the importance of women’s contribution to the economic growth. Both empowering women and ending gender based disparities are essential for sustainable development. More vigorous efforts will be required in order to achieve gender equality in terms of women’s empowerment even though it is evident that there are changes in the stereotypes that prevailed in the past. If a country makes better utilization of its female population, it would pave the way to increase economic growth, reduce poverty levels and enhance the wellbeing and living standards of its citizens. In order to close the gender related gaps, the governments have the responsibility to take into account the gender dimensions while implementing policies so that it can ensure that it doesn’t fail to make complete utilization of human capital resources (OECD, 2008). The focus and concern for women representation in business management has increased specially after the financial crises and corporate scandals such as Lehman Brothers and Enron. Many countries in Europe have adopted regulations in the form of legislative gender quotas for corporate boards. The main aim of implementing such gender quotas is to break the glass ceiling and provide an equal chance for both males and females in reaching top positions of companies. However, the underpresentation of women in senior positions in Sri Lankan firms indicates that they do not play a dominant role in the labour force as do females in developed economies. This is mainly due to women in developing economies such as Sri Lanka being typically confined to family and domestic roles and therefore tending to have invisible barriers in climbing up the corporate ladder and representing themselves on boards. Therefore, the Labour Force Participation Rate (LFPR) is low in Sri Lanka mainly due to the low contribution of women to the LFPR (CBSL, 2014). The issue of underrepresentation of women in corporate boards has gained substantial attention in today’s corporate world. There is a significant amount of evidence supporting this research issue in the developed countries. “In an attempt to address this question, many scholars in the recent years have studied the effect of women directors on firm performance. However, the empirical evidence of the extant literature inconclusive and most studies focus on firms in the U.S. and a few other developed economies” (Liu, Wei and Xie, 2014, p.170). Thus, investigating this research gap in a Sri Lankan context will be important to identify the extent to which women directors in the listed firms of Sri Lanka have the power to make strategic decisions and enhance firm financial performance. The role of public listed companies is important since they have the ability to boost the performance of an economy by contributing to the growth of financial institutions, creating employment opportunities and developing infrastructure facilities. If board gender diversity can trigger profitability and performance of the listed firms, then it will also be a determinant for economic growth.Publication Open Access A Framework for Macroeconomic Stress Testing on Credit Risk Management in Banking Sector(researchgate.net, 2017-08) Kandawala, D. S. A; Jayakody, J. A. D. C. A- In Sri Lanka the financial System composes the leading financial institutions which are associated with increased growth of an economy and contributes to the nation’s growth as well. Hence Financial system stability has become an integral part which safeguards financial system which is able to hold off external and internal shocks. This Process implements a healthy environment for investors and encourages financial markets and institutes for the efficient and effective functioning. The maintenance of financial system stability leads to analyze and emphasize potential vulnerabilities and risks to the financial system. Among the potential vulnerabilities and risks, Credit risk can be introduced as the dominant and leading macroeconomic risk factor in many banking sectors which has been introduced as the problem towards the financial system stability. Therefore Credit risks must be managed from financial crisis to enhance the performance, sustainable growth and consistent profitability for the betterment of financial system stability. The purpose of this research project is to propose a framework to investigate the relationship between credit risk management and its impact on performance of the Sri Lankan Banking Sector.Publication Open Access Effectiveness of Celebrity Endorsement on Social Media towards Consumer’s Purchase Intention(researchgate.net, 2017-02) Samarasinghe, U. SIn spite of numerous theoretical and empirical studies that examine celebrity endorsement on traditional media, few studies have attempted to examine the relationship between Source Characteristics and Consumer Purchase Intention in the domain of social media. Furthermore whether this relationship is differ from Male to Female is not empirically investigated. This study combines Source credibility and Source Attractiveness theories to oversee Source Characteristics factors on Consumer’s Purchasing Intention. As a result Source Attractiveness dimensions namely Source Familiarity, Source Likeability and Source Similarity have been introduced to the Source Characteristics which is the main theoretical contribution. A sample of 338 consumers who use social media for FMCG product purchase decisions responded to the survey. The results provided preliminary support for the hypothesized model. It was found that there is a positive relationship between Source Expertness, Source Trustworthiness, Source Likeability, Source Similarity and Consumer’s Purchase Intention while there is a negative relationship between Source Familiarity and Consumer’s Purchase Intention. The study further revealed that the impact of Source Expertness, Source Trustworthiness, Source Likeability, and Source Similarity is different for male and female consumers. Thus, in promotional campaigns a product which is used by only one particular gender has to concern itself with the characteristics of that particular gender, and Source Familiarity should not concern itself with gender diversity in celebrity endorsement since it has no impact on the relationship between Source Familiarity and a Consumer’s Purchase Intention.Publication Open Access Exploring the concept of “Marketing Myopia”(www.academicsjournal.com, 2016-10) Samarasinghe, H. M. U. S. RThe present study focuses on exploring the concept of “Marketing Myopia” which is identified as a one of the most influential management philosophies invented in the recent past. In the present study the author has explored the concept of marketing myopia based on the theoretical foundation provided by Theodore Levitt. The discussion is further strengthening with an analysis on four industries which authors identified as ones which are having myopic conditions. As an extension to the argument, present study provides suggestions for improvement for the industries under examination. In the conclusion authors are taking their stance on whether marketing myopia is a concept related to marketing or a concept which goes beyond marketing.Publication Open Access Social Media and Celebrity Endorsement: An analysis of Literature Review(researchgate.net, 2019-01) Samarasinghe, U. CThe purpose of this chapter is to provide a thorough review in existent literature in relation to the social media and celebrity endorsement. In view of that, this paper examines key concepts pertaining to social media, celebrity endorsement, Studies based on Source Characteristics, which are Source Expertise, Source Trustworthiness, Source Familiarity, Source Similarity and Source Likability .Each concept discussed in light of what past literature has stated in terms of the definitions, conceptualization, key arguments, antecedents and consequences, to offer a complete depiction of the theme.Publication Open Access Experimental study on an efficient dengue disease management system: Planning and optimizing hospital staff allocation(The Science and Information (SAI) Organization, 2018-01) Jayasuriya, M. M. C; Galappaththi, G. K. K. T; Sampath, M. A. D; Nipunika, H. N; Rankothge, WDengue has become a serious health hazard in Sri Lanka with the increasing cases and loss of human lives. It is necessary to develop an efficient dengue disease management system which could predict the dengue outbreaks, plan the countermeasures accordingly and allocate resources for the countermeasures. We have proposed a platform for Dengue disease management with following modules: (1) a prediction module to predict the dengue outbreak and (2) an optimization algorithm module to optimize hospital staff according to the predictions made on future dengue patient counts. This paper focuses on the optimization algorithm module. It has been developed based on two approaches: (1) Genetic Algorithm (GA) and (2) Iterated Local Search (ILS). We are presenting the performances of our optimization algorithm module with a comparison of the two approaches. Our results show that the GA approach is much more efficient and faster than the ILS approach.Publication Open Access Hashtag Generator and Content Authenticator(researchgate.net, 2018-01) Yapa Abeywardena, K; Ginige, A. R; Herath, N; Somarathne, H; Thennakoon, T. M. N. SIn the recent past, Online Marketing applications have been a focus of research. But still there are enormous challenges on the accuracy and authenticity of the content posted through social media. And if the social media business platforms are considered, majority of the users who try to add a market value to their own product face the problem of not getting enough attention from their target audience. The purpose of this research is to develop a safe and efficient trending hashtag generating application solution for social media business users which generates trending and relevant hashtags for user content in order to get a broad reach of target audience, automatically generates a meaningful caption to their relevant posts and guarantees the authenticity of the product at the same time. The user content is analyzed and filters the important keywords, generates a meaningful caption, suggest related trending keywords and generates trending hashtags to get the required reach for online marketers. Additionally, the marketing products’ content authentication is ensured. The application uses Natural Language Processing, Machine Learning, API technologies, Java and Python technologies. A unique database is assigned to users which contains rankings for each user. The target audience who engages in buying products get to know about the status of the sellers with respect to authenticity of the content. It is believed that the application provides a promising solution to existing audience reach problems of online marketers and buyers. The significance of this system is to help marketers and buyers to engage in online buying and selling with much effective, reliable and safer ways. This mitigate the vulnerability of bad social media marketing influences and helps to establish a safe and reliable online marketing practice to make both sellers and buyers happy. This paper provides a brief description on how to perform an organized online marketing discipline via the Trending Hashtag Generator & Image Authenticator application.