SRI LANKAN JOURNAL OF AGRICULTURAL ECONOMICS Volume 4 Number 1. 2002 The Relationship between Core Resources and Strategies of Firms: The Case of Sri Lankan Value-Added Tea Producers Authors - A. Ariyawardana and W.C. Bailey Implication of Tenancy Status on Productivity and Efficiency: Evidence from Fiji Author - Mahendra Reddy Prospects of Pharmaceutical Prospecting to Finance Biodiversity Conservation in Sri Lanka Authors - D.K.N.G. Pushpakumara, H.B. Kotagama, B. Marambe, G. Gamage, K.A.I.D. Silva, L.H.P. Gunaratne, C. Wijesundara and S.S.D.K. Karaluvinne Ranking Environmental Services in Different Countries Authors - B. Olsson, P. Birungi, S. Huda, G.R. Motlaleng, J. Onjala and T. Sterner An Assessment of Intra-household Allocation of Food: A Case Study of the Urban Poor in Kandy Author - Ishara Rathnayake and Jeevika Weerahewa Market Potentials and Willingness to Pay for Selected Organic Vegetables in Kandy Authors - A.G.S.A. Piyasiri and A. Ariyawardana An Assessment of Financial and Economic Feasibility of Selected Forest Plantation Species Authors - G.H. Pitigala and H.M. Gunatilake Estimation of Technical Efficiency and Its Determinants in the Tea Small Holding Sector in the Mid Country Wet Zone of Sri Lanka Authors - B.M.J.K. Basnayake and L.H.P. Gunaratne Service Quality and Its Impact on the Farmer Productivity in the Other Export Crop Sector: A Case Study of Ukuwela Agrarian Service Division Authors - A.H.M.S.W.B. Abeyrathne, Sarath S. Kodithuwakku and L.H.P. Gunaratne