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“Principles of Micro Economics” Second Edition (Co-authored with Mr. P.P.A. Wasantha Athukorala) (Written in Sinhalese), (2007)
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"The Impact of Foreign Direct Investment on Economic Growth : A case study in Sri Lanka" Sri Lanka Economic Journal (2004) Vol. 5(2) : 97-134
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"Socio-Economic Factors Affecting Tree Cultivation in Home Garden in Kandy and Kegalle Districts" Tropical agricultural Research : (2002) Vol.(14):292-303
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World Food Security and Sri Lanka (2002)
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Why state is necessary for the Economic Affairs (2003)
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Fertility behavior of women in an Agrarian Community in Sri Lanka : The case study on Ratnapura district (2002)
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Principles of Microeconomics (2005) (written in Sinhala)
CONFERENCE PRESENTATIONS AND PROCEEDINGS
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Karunarathna, K.M.R. 2011 “Agricultural biodiversity and farm level technical efficiency: an empirical investigation”. Presented at the Western Economic Association International's 9th. Biennial Pacific Rim Conference, QUT, Brisbane, April 2011 (jointly with Clevo Wilson & Tim Robinson)
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2011. “Factors influencing farmers’ demand for agricultural farm biodiversity in small-scale farms: an empirical investigation”. Presented at the Research Students’ Colloquium 2011, Queensland University of Technology, Brisbane, October 2011 (jointly with Clevo Wilson & Tim Robinson)