Conferences

2025

• Hariskar, R., Sooriyakumar, K. Sivashankar, S., and Sarujan, S (2025) “Impact of the Adoption of Photovoltaic System on Households’ Energy Consumption: The Evidence from the Urban Area in Jaffna District in Northern Sri Lanka” In: 3rd International Conference on Multidisciplinary Research (ICMR 2025), Eastern University of Sri Lanka on 03rd and 04th January 2025.

• Gurupatham, W.E.S., Sivashankar, S., Sooriyakumar, S., and Sarujan, S (2025) “Estimating households’ willingness to pay for composting of solid waste: A choice experiment approach”. In: 29th International Forestry and Environment Symposium 2025, University of Sri Jayewardene, Sri Lanka on 17th and 18th January 2025.

• Musthifa, B., Sivashankar, S., Sooriyakumar, K., and Sarujan,S. (2025) “Households’ demand for disaggregated meat products in Sri Lanka: A Censored Quadratic Almost Ideal Demand System Model” In: International Conference on Agriculture and Plantation Management (InCAPM), Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka on 16th- 18th May 2025.

• Rimsath, M., Sooriyakumar, K., Sarujan,S., and Sivashankar, S. (2025) “Production efficiency of the local paddy cultivation under Valaichenai agrarian services centre area” In: International Conference on Agriculture and Plantation Management (InCAPM), Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka on 16th- 18th May 2025.

• Misfa, S.L.F., Sivashankar, S., Sooriyakumar, K., and Sarujan,S. (2025) “Local communities’ preferences and willingness to pay for improving tourist facilities and conservation of ecosystem in Arugambay lagoon, Sri Lanka” In: International Conference on Agriculture and Plantation Management (InCAPM), Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka on 16th- 18th May 2025.

• Ratheeban, P., Sooriyakumar, K., Sarujan, S., and Sivashankar, S. (2025) “Assessing the Impact of Subsidy loans from Rotary Club on Paddy farmers’ productivity in Kilinochchi, Sri Lanka” In: International Conference on Agriculture and Plantation Management (InCAPM), Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka on 16th- 18th May 2025.

• Lathusha, T., Sooriyakumar, K., Sivashankar, S., and Sarujan, S. (2025) “Impact of sprinkler irrigation on yield and cultivation costs in ground nut and jumbo peanut farming in Kilinochchi” In: 4th International Symposium on Agriculture, Faculty of Agriculture, Eastern University of Sri Lanka on 6th March 2025.

• Jayaweera, P.T.U., Sarujan, S., Sivashankar, S., and Sooriyakumar, S. (2025) “Water access and its implications on farm production: Evidence from Hakwatuna irrigation system in Kurunegala district, Sri Lanka” In: National Symposium on Agriculture and Life Sciences (NSALS’ 25), Uva Wellassa University, Badulla, Sri Lanka on 23rd January 2025.

2024

• Balamauran, R., Sooriyakumar, K., Sivashankar, S*.(2024) Local Fishermen’s Willingness to Accept Compensation for Commercial Sea Cucumber Farms in Jaffna Lagoon, Sri Lanka. In Proceedings of the 28th International Forestry and Environment Symposium.pp.110

• Sarujan, S., and Sakurai, T. (2024) “Understanding the effectiveness and mechanisms of community-based mangrove restoration: empirical evidence from northern Sri Lanka”. In: Theoretical Economics and Agriculture (TEA) Annual meeting, Aobayama Commons, Tohoku University on 29th March 2024.

• Sarujan, S., and Sakurai, T. (2024) “Effect of war for community participation in mangrove restoration in northern Sri Lanka: Mechanisms and heterogeneity”. In: 100th Annual Meeting of Agricultural Economics Society of Japan (AESJ), Tohoku University on 30th -31st March 2024.

• Vanaiya, S., Sivashankar, S., Sooriyakumar, K. and Sarujan, S (2024) “Households’ Preferences for Private Tuition Attributes in Jaffna Municipal Area, Sri Lanka”. In: Proceedings of 6th International Symposium on Social Sciences and Humanities on 24-25 October 2024.

2023

•  Sarujan, S., and Sakurai, T. (2023) “Role of community participation in mangrove restoration: Evidence from northern Sri Lanka. In: 11th Asian Society of Agricultural Economists (ASAE) International Conference, Aoyama Gakuin University, Tokyo, Japan on 17th – 20th March 2023. (Received 3rd prize of the Best Paper Award)

2020

• Prasath, S. and Umashankar, K. (2020), “Effects of Improved Management practices on Production of Fresh milk among Small holder Dairy Farms operating in a dairy chain in Kilinochchi District” , Twelfth Annual Research Forum of Sri Lanka Agricultural Economics Association on 30th January, 2020, pp: 9-10.

• Upamalika, K.V.A.M., Shantha, W.H.A. and Umashankar, K. (2020), “Value Chain Performance and the Socio-Economics Factors that Influence Market Supply of Guava in Anuradhapura District Sri Lanka” , Twelfth Annual Research Forum of Sri Lanka Agricultural Economics Association on 30th January, 2020, pp: 11-12.

• Selvaraj, K.N. and Umashankar, K. (2020), “How the Trade in Agricultural Technological Innovation is affecting the Small Holders’ Income Security in Developing Countries in the Context of Intellectual Property Regime?” , Twelfth Annual Research Forum of Sri Lanka Agricultural Economics Association on 30th January, 2020, pp: 17-18.

• Tharmitha,S. , Sooriyakumar,K. (2020). “Analysis of Resource Use Efficiency in Chilli Production and Its Contribution to Household Farm Income in Manmunai South AND Eruvilpattu DS Divisions, Batticaloa” , 6th International Conference on Dry zone Agriculture, Faculty of Agriculture, University of Jaffna, Sri Lanka on 3rd  and 4th  December, 2020, pp: 22.

• Rathnamalala,D.P. , Sooriyakumar,K. (2020). “Technical Efficiency of Paddy Production and Factors Affecting the Efficiency in Anuradhapura District, Sri Lanka”, 6th International Conference on Dry zone Agriculture, Faculty of Agriculture, University of Jaffna, Sri Lanka on 3rd  and 4th  December, 2020, pp: 24.

•  Kamshajini,R.  , Sooriyakumar,K. , and Sivashankar,S. (2020). “Farmers’ Perceptions on Dairy Development Strategies in Vavuniya District, Sri Lanka” , 6th  International Conference on Dry zone Agriculture, Faculty of Agriculture, University of Jaffna, Sri Lanka on 3rd  and 4th  December, 2020, pp: 68.

•  Linoja,K.  , Sooriyakumar,K. , and Sivashankar,S. (2020). “Households’ Willingness to Pay for the Sewerage System in Jaffna Municipal Area, Sri Lanka” , 6th  International Conference on Dry zone Agriculture, Faculty of Agriculture, University of Jaffna, Sri Lanka on 3rd  and 4th  December, 2020, pp: 90.

• Anusha,R.  , Sooriyakumar,K. , and Sivashankar,S. (2020). “Impact of Milk Collecting Centers on Milk Production in Valikamam East of Jaffna District” , Jaffna Science Association, University of Jaffna, Sri Lanka on 22nd October, 2020.

• Jeyathaksha,S.  , Sooriyakumar,K. , and Sivashankar,S. (2020). “Household Willingness to pay for the piped water supply to House in Nallur area of Jaffna District, Sri Lanka” , International Conference on Water, Society and Climate Change WaSo 2020 on 15th and 16th December, 2020, pp: 174.

2019

2018

• Lojiny,T. , and Umashankar,K. (2018). “Poverty Status of Daily Wage Farm Labourers in Kilinochchi District”. In: 4th International Conference on Dry zone Agriculture, Faculty of Agriculture, University of Jaffna, Sri Lanka on 1st  and 2nd  November, 2018, Pp:107.

• Dissanayake,P.C.D.A., and Umashankar,K. (2018). “Influence of Assets in Shoring Up Risk Bearing Ability of Smallholder Family Operated Coconut Farm Households”. In: 4th International Conference on Dry zone Agriculture, Faculty of Agriculture, University of Jaffna, Sri Lanka on 1st  and 2nd  November, 2018, Pp:109.

• Shalton,A.R. , and Umashankar,K. (2018). “Determinants of the Socio-economic status of the Sea Food Harvesting Community of Peninsular,Jaffna”. In: Eleventh Annual Research Forum of Sri Lanka Agricultural Economics Association on 13th January,2018,Pp:6.

• Neduncheliyan,S. , and  Umashankar,K. (2018). “Influence of the Socio-economic Factors on the Credit Accessibility of Micro Level Poultry Farming Households in Peninsular, Jaffna”. In: Eleventh Annual Research Forum of Sri Lanka Agricultural Economics Association on 13th January,2018,Pp:7.

• Sarujan, S., Sivashankar, S. and Sooriyakumar, K. (2018).“Supply Response of Fresh Milk in Sri Lanka”. In: Eleventh Annual Research Forum of Sri Lanka Agricultural Economics Associationon 13th January, 2018, Pp:14.

• Hasitha,E.K., Sooriyakumar,K. and Sivashankar, S. (2018).“Impact of Fertilizer Subsidy on Paddy Production in Matale District”. In: 4th International Conference on Dry Zone Agriculture,Faculty of Agriculture, University of Jaffna, Sri Lanka on 1st  and 2nd  November,Pp:112.

• Sooriyakumar,K., Sarujan,S. and Sivashankar,S. (2018). “Fisherman’s Willingness to Pay for Sustainable Ecosystem Management of Jaffna Lagoon”. In: 17th World Lake Conference, Pp:134.

• Parisan,S., Sooriyakumar,K. and Sivashankar, S. (2018) “Impact of Incomplete Milking on Milk Production in Kilinochchi District”. In: 4th International Conference on Dry Zone Agriculture,Faculty of Agriculture, University of Jaffna, Sri Lanka on 1st  and 2nd  November,Pp:113.

• Sumangkali, P., Sivashankar,S. and Sooriyakumar,K. (2018). “Consumer’s Willingness to Pay for Quality Attributes of Drinking Water from Common Tap in Jaffna Divisional Secretariat Area”. In: 4th International Conference on Dry Zone Agriculture,Faculty of Agriculture, University of Jaffna, Sri Lanka Pp:114.

• Faslim, M.P.M., Sivashankar,S. and Sooriyakumar,K. (2018). “Impact of Rainfall on Coconut Production in Sri Lanka”. In:4th International Conference on Dry Zone Agriculture, Faculty of Agriculture, University of Jaffna, Sri Lanka on 1st  and 2nd  November,Pp:115.