| Year | Title | Location | Types of Data | Variables | Method | Author(s) |
|---|---|---|---|---|---|---|
| 2007 | Feasibility Study on the Development of Oil Palm Agribusiness Areas in Arongan Lambalek, West Aceh | West Aceh | Primary | Production Cost, Investment Cost, FFB Price | BEP, NPV, IRR, Ratio B/C | Muhammad Authar ND |
| 2010 | Production Factor Usage and Technology Application and Its Relation to the Marketing Channel Selection of Oil Palm Smallholders in Aceh | North Aceh, Aceh Tamiang, Aceh Singkil and Nagan Raya | Primary | 1. Dependent: Production Independent: Land area, Labor, Fertilizer, Pesticide, Technology(Dummy) 2. Dependent: Smallholders’ Choice of Marketing Channels Independent: Smallholder Age, Formal Education, Experience in Oil Palm Cultivation, FFB Price, Loan, Distance from Smallholding to Mill, Production Volume | Cobb-Douglass Multinomial Logit | Mawardati |
| 2010 | Productivity Gaps among Oil Palm Smallholders in Nanggroe Aceh Darussalam | North Aceh, Aceh Tamiang, Aceh Singkil and Nagan Raya | Primary | Land area, Location, Plant Age and Productivity | Analysis of variance (Anova) | Mawardati |
| 2011 | Analysis of Smallholder Oil Palm Production in North Aceh | Kuta Makmur, Simpang Kramat | Primary | Dependent: Production Independent: Land Area, Labor, Capital | Cobb- Douglas | Mawardati |
| 2012 | Analysis of the Implementation of the RSPO Agreement in Smallholdings | Asahan, Labuhan Batu, North Labuhan Batu and South Labuhan Batu, North Sumatera | Primary | Dependent: Smallholder adoption level on the RSPO principles and criteria Independent: age, formal education, experience, number of family dependants, land area, income, cosmopolitan and group participation | Multinomial Logit | Diana Chalil and Riantri Barus |
| 2012 | Impact study of the project on sustainable palm oil production for bio-energy in Thailand | Sutonya THONGRAK | ||||
| 2013 | Willingness to Pay and Cost Benefit Analysis on the Implementation of the RSPO Principles and Criteria | Pelelawan, Riau, Asahan and Batu Bara, North Sumatera, West Tanjung Jabung, Jambi | Primary | Dependent: Smallholders’ WTP on the costs needed to meet the RSPO principles and criteria, Independent: sales continuity, price increase, fertilizer certainty, production increase, group participation, experience, education level, age, land area, time since being introduced to RSPO | Binomial Logit | Diana Chalil and Riantri Barus |
| 2014 | The impact of RSPO Certification on Oil Palm Smallholder Group Income in Jambi | Merangin, Jambi | Qualitative - Non parametric | - Smallholder Household Income - Social and environmental aspects of Oil palm smallholders | Descriptive and sign test | Dompak MT Napitupulu |
| 2014 | Field Survey - Supply Chain in the Palm Oil Industry and the Impact of its Expansion in Mandailing Natal, North Tapanuli and South Tapanuli | Mandailing Natal, North Tapanuli and South Tapanuli | Primary | Plantation types in national and international private companies, SOEs and smallholders, changes in the total number of companies, Smallholders (independent/schemed), RSPO membership, Information from the Government Office Map, Perception of the local government, Company Site, Company Legal Matters, etc | Descriptive | Diana Chalil and Riantri Barus |
| 2014-2015 | The Role of Roundtable on Sustainable Palm Oil (RSPO) Process in Improving and Sustaining the Livelihood of Small Farmers in Malaysia | Yeong Sheng TEY | ||||
| 2015 | The Crude Palm Oil Market Integration between European Countries, India and China | Indonesia, Malaysia, China, India, Germany, Italia, Belanda | Secondary | CPO import and export prices | Cointegration, Granger Causality, Seemingly Unrelated Regression (SUR) dan Vector Error Correction Model (VECM) | Diana Chalil and Riantri Barus |
| 2015 | Crude Palm Oil Market Integration | China, India, Germany, Italia, Belanda | Secondary | CPO import and export price and volume | Cointegration, Granger Causality, Seemingly Unrelated Regression (SUR) dan Vector Error Correction Model (VECM) | Diana Chalil and Riantri Barus |
| 2016 | Smallholders’ Palm Oil Certification: The Impact on Sustainable Development and Livelihood | Indonesia and Malaysia | Primary | Economic aspect (Productivity, Price, Production cost, Social Aspect and Environmental Aspect) | Descriptive and mean difference test (independent sample t-test) | Diana Chalil, Shaufique F. Sidique and Riantri Barus |
| 2016 | Improving Oil Palm Smallholders’ Participation in Global Market to Strengthening Indonesian Agribusiness Rural Development | Sei Lilin, Banyuasin, South Sumatra | Primary | Productivity, input price, cost, revenue | Independent compare means test and frontier estimation models | Diana Chalil and Riantri Barus |
| 2016 | Comparison of the Financial Feasibility of Smallholdings utilizing an Integrated Oil Palm-Cattle System with Smallholdings Without System Integration | Nagori Partimbalan, Bandar Masilam, Simalungun, North Sumatera and Sungai Lilin, Musi Banyuasin, South Sumatera | Primary | Financial feasibility is analyzed using NPV, Net B/C, IRR, payback period, and sensitivity analysis | Yudi Setiadi Damanik, Diana Chalil, Riantri Barus, Apriandi Saragih | |
| 2017 | Analyzing the Sustainability of Indonesia Pakistan Palm Oil Supply Chain | Indonesia - Pakistan | Secondary | Indonesian palm oil import volume in Pakistan, Indonesia-Pakistan trade balance, Indonesian and Malaysian palm oil import prices, exchange rates, soybean oil import price | Autoregressive Distributed Lag Model (ARDL) | Diana Chalil and Riantri Barus |
| 2017 | Questioning the Sustainable Palm Oil Demand: Case Study from the French-Indonesian Supply Chain | Indonesia - France | Secondary | Indonesian palm oil import volume in France, French GDP, Indonesian, Malaysian, German and Dutch palm oil import prices, exchange rates, peanut oil import price | Autoregressive Distributed Lag Model (ARDL) | Diana Chalil and Riantri Barus |
| 2018 | Risk Analysis of Smallholder Production and Oil Palm Price in North Sumatra | Indonesia | Primary | FFB production and price | Value at Risk (VaR) | Diana Chalil, Thomson Sebayang and Riantri Barus |
| 2018 | Partnership Model to Promote Inclusiveness of Indonesian Oil Palm Smallholders in Global Value Chains | Indonesia | Primary | Ownership, Voice, Risk, Reward | Mann Whitney test and binary logistic | Diana Chalil, Isfenti Sadalia, Zulkifli, Jullimursyida, Mawardati, and Riantri Barus |
| 2018-2019 | Socio-Economic Dimensions of Palm Oil Replanting Towards Sustainable Palm Oil Entrepreneurs (Case Study: North Sumatra) | Indonesia | Primary | Descriptive | Diana Chalil, Riantri Barus, and Syahrizal Chalil | |
| 2018-2019 | Workload Standards and Work Targets for Oil Palm Harvesters | Indonesia | Primary | Descriptive | Diana Chalil and Riantri Barus | |
| 2019 | Enhancing Smallholders’ Yields (ESY) | Indonesia | Primary | Descriptive | Diana Chalil | |
| 2019 | Assessing costs and benefits of standards implementation in oil palm in Indonesia | Indoensia | Primary | Certification costs and benefits | Descriptive | Diana Chalil |
| 2019 | Analysis of Inclusivity and Impact on the Welfare of Oil Palm Smallholders using Landscape Management | Indonesia | Primary | Descriptive | Diana Chalil, Riantri Barus and Oding Affandi | |
| 2019 | Partnership Model to Promote Inclusiveness of Indonesian Oil Palm Smallholders in Global Value Chains | Indonesia | Primary | Trading margin and efficiency | Diana Chalil, Isfenti Sadalia, Zulkifli, Jullimursyida, Mawardati, and Riantri Barus |
