- Sooriyakumar, K., Sivashankar, S. and Sireeranhan, A. (2019): Farmers’willingness to Pay for the Ecosystem Services of Organic Farming: A Locality Study In Valikamam Area of Sri Lanka-Applied Ecology and Environmental Research 17(6):13803-13815.
- Sooriyakumar Krishnapillai, Vairavipillai Pasupathy Sivanathan, Anushiya Sireeranhan, “ Relative Importance of Monetary Transmission Mechanism in Sri Lanka: An Empirical Investigation”, Economics Bulletin, 36 (1), 560-568, 2016
- Sooriyakumar.K, Sivanathan.V.P and Kandeepan.V, Testing the Conditional and Unconditional CAPM for Sri Lankan Stock Market, 2015
- Sooriyakumar Krishnapillai, John Leonasrd and Henry Kinnucan (2014), “Employment and Population Growth in Florida’s Counties”, IUP Journal of Applied Economics, 1-14
- Sooriyakumar Krishnapillai, (2012) “Impact of NAFTA on the Preference for Meat Consumption in USA: An Inverse Demand System Approach,” International Journal of Economics and Financial Issues, 2-1, 79-84.
- Sooriyakumar Krishnapillai and Henry Thompson (2012), “Cross Section Translog Production Function and Elasticity of Substitution in U.S. Manufacturing Sector”, International Journal of Energy Economics and Policy, 2-2, 50-54.
- Sooriyakumar Krishnapillai and Henry Kinnucan (2012), “Impact of Automobile Production on Non-Farm Proprietor densities in Alabama”, Journal of economic development , 37-3,
- Sooriyakumar Krishnapillai and Henry Kinnucan (2012), “Effects of Automobile Production and Local Government Expenditure on Poverty in Alabama”, Economics Bulletin, 32-3, 2136-2145.
- Sooriyakumar Krishnapillai and Henry Thompson (2012), “Pass Through Effect of Exchange Rate and Monetary Policy in Sri Lanka,” International Journal of Applied Economics and Finance, 6-1, 29-36.
- Sooriyakumar Krishnapillai and Henry Thompson (2011), “Exchange Rates, Free Trade Agreement and Bilateral Trade Balances of Sri Lanka,” Indian Journal of Economics and Business 10-2, 163-171.