Ratnasiri, S.Marasinghe, R.Weerahewa, J.2014-11-122014-11-121999Tropical Agricultural Research, 11:p.255-271https://dl.nsf.gov.lk/handle/1/12408AgricultureAgricultural economicsImport taxesPotatoesOnionsChilliAgricultural policyTrade liberalizationEconomic impact of trade liberalization for other field crops in Sri LankaA