He has also authored and coauthored articles and books on economic development in Sri Lanka and the pacific region.
Gunasekera completed a Bachelor Arts Honors Degree, Economics from the University of Peradeniya in 1962.
While in USP he published several articles on the Fijian economy including its development and policy in the Journal of Pacific Studies.
[3][4] He headed Vision 2018, the economic planning document for the Republic of the Marshall Islands and used for the US-RMI compact negotiations from 2002 to 2003.
[9] He also translated several Buddhist books by Venerable Boralande Subodha Meheni, including The Key to the Door of Nibbana or the Supreme Happiness.