Designing Conservation-Incentives for Tanzania’s Ecological Corridors: Cost-effectiveness and Behavioral Determinants

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Nyanghura, Qambemeda, 2025, "Designing Conservation-Incentives for Tanzania’s Ecological Corridors: Cost-effectiveness and Behavioral Determinants", https://doi.org/10.60507/FK2/GTAG4H, bonndata, V1

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Description	This dataset contains observations from the lab-in-the field experiment or game and post-experiment survey. The aim of the study was to design and assess the conservation effectiveness of different modalities of payment for ecosystem services (PES) under equal and unequal land distribution. The study further explores the influence of personal values (Biospheric and Egoistic) in shaping the performance of PES. The experiment was conducted in rural villages within two ecological corridors of Tanzania namely Igando-Igawa (IIWC) and Baga-Kisimagonja (BKG). Specifically, the experiment was implemented in a group of four local farmers (we call them players). One group was assigned to a treatment (i.e. treatment group) and another not (i.e. control group). A group can either in equal (i.e., all small farmers, each endowed with two parcels of experimental farmland) or unequal (i.e., small and large farmers, each large farmer endowed with four parcels of experimental farmland) settings. The treatment was introduced in a sequence of three consecutive rounds of the game that are; conservation sensitization as a baseline (T0), followed by fixed payment (T1) and fixed payment with agglomeration bonus (T2). Farmers in control group consistently repeated the baseline. In all the three rounds, farmer had to make a decision on whether to retire the experimental farmland for conservation or keep farming. Every decision had a payoff framed in Tanzania shillings. The environmental payoff resulted from a conservation decision constituted the outcome of interest. The variable of interest is PES which includes T1 and T2. The other variable of interest are personal values collected from a survey. Other variables are experimental elements such as whether a farmer is in the treatment or control group, equal or unequal sub-group, small or large farmer, number of experimental rounds and day of the experiment. Other identification variables such as individual ID and number of the player in the experiment are listed. Socio-economic and demographic characteristics (age, gender, education, household income, family size and total farmland owned by household) are included as a control variable. This is in addition to trust, real-world variation in decision-making power over land and social and environmental relatedness. (2025-05-21)
Subject	Agricultural Sciences; Earth and Environmental Sciences; Social Sciences
Related Publication	Is Supplement To: Nyanghura, Q. M., Biber-Freudenberger, L., & Börner, J. (2024). Incentives for biodiversity conservation under asymmetric land ownership. Ecological Economics, 219,doi: 108152
License/Data Use Agreement	CC0 1.0

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	Dataset _Designing_Conservation_Incentives_Ecological_Corridors-2.xlsx MS Excel Spreadsheet - 151.8 KB Published May 26, 2025 11 Downloads MD5: 06a99106330467827e5c8ed9da48f90f	Access File File Access Public Download Options MS Excel Spreadsheet Download Metadata Data File Citation Download EndNote XML Download RIS Download BibTeX
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Persistent Identifier	doi:10.60507/FK2/GTAG4H
Publication Date	2025-05-26
Title	Designing Conservation-Incentives for Tanzania’s Ecological Corridors: Cost-effectiveness and Behavioral Determinants
Author	Nyanghura, Qambemeda (University of Bonn) - ORCID: https://orcid.org/0000-0001-5786-4553
Point of Contact	Use email button above to contact. Nyanghura, Qambemeda (University of Bonn)
Description	This dataset contains observations from the lab-in-the field experiment or game and post-experiment survey. The aim of the study was to design and assess the conservation effectiveness of different modalities of payment for ecosystem services (PES) under equal and unequal land distribution. The study further explores the influence of personal values (Biospheric and Egoistic) in shaping the performance of PES. The experiment was conducted in rural villages within two ecological corridors of Tanzania namely Igando-Igawa (IIWC) and Baga-Kisimagonja (BKG). Specifically, the experiment was implemented in a group of four local farmers (we call them players). One group was assigned to a treatment (i.e. treatment group) and another not (i.e. control group). A group can either in equal (i.e., all small farmers, each endowed with two parcels of experimental farmland) or unequal (i.e., small and large farmers, each large farmer endowed with four parcels of experimental farmland) settings. The treatment was introduced in a sequence of three consecutive rounds of the game that are; conservation sensitization as a baseline (T0), followed by fixed payment (T1) and fixed payment with agglomeration bonus (T2). Farmers in control group consistently repeated the baseline. In all the three rounds, farmer had to make a decision on whether to retire the experimental farmland for conservation or keep farming. Every decision had a payoff framed in Tanzania shillings. The environmental payoff resulted from a conservation decision constituted the outcome of interest. The variable of interest is PES which includes T1 and T2. The other variable of interest are personal values collected from a survey. Other variables are experimental elements such as whether a farmer is in the treatment or control group, equal or unequal sub-group, small or large farmer, number of experimental rounds and day of the experiment. Other identification variables such as individual ID and number of the player in the experiment are listed. Socio-economic and demographic characteristics (age, gender, education, household income, family size and total farmland owned by household) are included as a control variable. This is in addition to trust, real-world variation in decision-making power over land and social and environmental relatedness. (2025-05-21)
Subject	Agricultural Sciences; Earth and Environmental Sciences; Social Sciences
Subject Refinement	Environmental Economics
Keyword	Payment Agglomeration bonus Biospheric Egoistic Conservation Ecological corridors Lab-in-the-field experiment
Related Publication	Is Supplement To: Nyanghura, Q. M., Biber-Freudenberger, L., & Börner, J. (2024). Incentives for biodiversity conservation under asymmetric land ownership. Ecological Economics, 219, doi 108152 https://doi.org/10.1016/j.ecolecon.2024.108152 Is Supplement To: Nyanghura, Q.M., Börner, J., & Biber-Freudenberger, L. (2024). Motivational drivers and the effectiveness of conservation incentives. Front. Sustain. Food Syst. 8:1493672. doi 10.3389 https://doi.org/10.3389/fsufs.2024.1493672
Language	English
Production Date	2022-06-15
Production Location	Igando-Igawa and Baga-kisimagonja ecological corridors in Tanzania
Contributor	Researcher : Nyanghura,Qambemeda
Funding Information	DAAD, a German Academic Exchange Service German Ministry for Education and Research (BMBF) under LANd Use SYNergies and CONflicts (LANUSYNCON) project within the framework of the 2030 Agenda: 01UU2002 Collaborative Research Center 228: Future Rural Africa: TRR 228 Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy: EXC-2070-390732324-PhenoRob
Distributor	Nyanghura, Qambemeda (Center for Development Research, University of Bonn) (ZEF)) "https://www.zef.de/"
Depositor	Nyanghura, Qambemeda
Deposit Date	2025-05-21
Date of Collection	Start Date: 2022-04-01 ; End Date: 2022-05-30
Data Type	Quantitative
Software	Excel, Version: 2019

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