Senior Assistant Professor, UBD School of Business and Economics
Dr. Gamini holds a Masters Degree in Policy Economics (1992) and a Ph.D. degree in Economics (2001) with specialization in Econometrics from the University of Illinois at Urbana-Champaign, where he also serves as a teaching assistant and research assistant positions for several years. After graduation, He has joined as an Assistant Professor in the Department of Economics at National University of Singapore (2001-2009). Currently he is holding a faculty position at the UBD School of Business, Universiti Brunei Darussalam. In addition to academic tasks, he also serves as the Deputy Dean of the UBD School of Business and Economics.
His research interests include, behavioral finance, volatility models, higher moments, hypothesis testing, macroeconometric modeling and risk management. He has published locally and internationally refereed journals and book chapters, including Journal of Financial Econometrics, Journal of statistical planning and inference, communication in statistics, Handbook of Asian Finance. He has supervised, co-supervised, and served on the advisory and examination committees of a number of masters and Ph.D. students. In addition, he has vast experience in sample surveys and data analysis and working as a trainer for statistical software.
Pearson Family of Distributions
Many studies found that financial data exhibits non-normal characteristics such as Asymmetry and Leptokurtosis. Though the third-moment or skewness has been studied. there is not yet a good in-depth analysis in fourth moment or leptokurtosis. This study aims to provide an extensive literature on leptokurtosis discuss the importance and use of this measure in relation to financial data and develop suitable tests for testing kurtosis in the presence/absence of skewness.
Pearson family of distributions has not been used extensively in economics though there are few applications in finance. The objective of this study is to explore the behavior of economics data in relation to this family of distributions.
This study aims to search for a new sensitivity measure that can explain the behavior of returns and volatility. Using some preliminary work available in the literature a measure can be developed theoretically and tested empirically.
Google Scholar Citations
Google Scholar h-index
Google Scholar i10-index
Systemic interconnectedness among Asian Banks, (jointly with Jones Menshah), Japan and the World Economy, Vol 41, March 2017, pp 17-33, Elsevier
Exploring Diversification Benefits in Asian Equity Markets, Jointly with Jones Menshah, Singapore Economic Review, , Nov 2016
Regional Integration And Economic Growth In Southeast Asia (Jointly with Bong Angkeara), Global Business Review, 19.6, Accepted.2016
Adjusting the tests for skewness and Kurtosis for Distributional Misspecifications (jointly with Anil K Bera) , Communication in Statistics: Simulation and computation, Taylor and Francis, 2015.
Entrepreneurial Engagement Choice and Credit Constraints: Empirical Analysis of Urban Informal Microentrepreneurship in Sri Lanka (with Damayanthi, B.W.R), Asian Social Science, Vol 11, No 26, 2015
â€œA test for asymmetry with leptokurtic Financial Dataâ€ (jointly with Anil K. Bera), Journal of Financial Econometrics. Vol 3(2), pp 169-187, 2005
"General Hypothesis Testing", (with Anil K. Bera), Companion in Econometric Theory , Edited by Badi Baltagi, Basil Blackwell, 2001 and 2003, pp 38-61.
â€œOn some hetroskedasticity-robust estimators of variance-covariance matrix of the least-square estimatorsâ€ (jointly with Anil K. Bera and T. Supriyitno) Journal of Statistical planning and inference , Vol 108, pp 121-136, 2002.
A Study on the long Run Behavior of Intellectual Capital Performance: US Banking Industry caseâ€, (Jointly with Sampath Kehelwaltenna) New Zealand Economic Papers, Special Issue on Economic Growth and Development. (Jan 2014), pp 1-21
â€œAsian Mutual Fundsâ€ (jointly with Jones Mensah), Book chapter in Handbook of Asian Finance, Elsevier Publishers, June 2014.
Yes, provides consultancy on data analysis and modeling using Eviews, R, RATS, GAUSS. Data collection, questionnaire design, pilot surveys, tabulation are also part of my expertise.,
Training on Statistical and econometrics tools and applications
Software training for Practitioners on Econometrics and Time Series Applications: using Eviews, RATS, R, GAUSS
7 years of experience as a Statistician conducting/ coordinating sample surveys, questionnaire designs, data analysis, sample selections (Theory and Practice)