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Terrorism and land use in agriculture: A response to a replication attempt and additional insights on replication guidelines

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  • Adelaja, Adesoji
  • George, Justin

Abstract

Replication studies are intended to enhance confidence in research findings by ground-truthing previous studies and/or fact-checking their errors. Drawing on existing literature, this study reiterates guidelines to ensure sound and value-adding replication efforts, including (1) using appropriate data-management processes, (2) an accurate and error-free replication attempt, and (3) clear understanding of the research problem at hand. Using these standards, this study compares the 2019 Land Use Policy (LUP) article titled “Terrorism and land use in agriculture: The case of Boko Haram in Nigeria” by Adelaja & George, to its 2023 replication attempt by Ölkers, Kirchner, & Mußhoff in LUP. We identify numerous errors, miscalculations and misreporting, suggesting a very limited understanding of databases used and the context of the original study. We conclude that the inability of Ölkers et al. (2023) to meet the standards implied by these guidelines might have led to findings that are drastically different from the original study. This study further undergirds the importance of guidelines for replication studies and offers other suggestions for promoting high quality replication studies.

Suggested Citation

  • Adelaja, Adesoji & George, Justin, 2024. "Terrorism and land use in agriculture: A response to a replication attempt and additional insights on replication guidelines," Land Use Policy, Elsevier, vol. 138(C).
    • Handle: RePEc:eee:lauspo:v:138:y:2024:i:c:s0264837723005136
    DOI: 10.1016/j.landusepol.2023.107047
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    References listed on IDEAS

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    1. Stefan Wimmer & Robert Finger, 2023. "A note on synthetic data for replication purposes in agricultural economics," Journal of Agricultural Economics, Wiley Blackwell, vol. 74(1), pages 316-323, February.
    2. Posso, Alberto, 2023. "Terrorism, banking, and informal savings: Evidence from Nigeria," Journal of Banking & Finance, Elsevier, vol. 150(C).
    3. Valentina Rotondi & Michele Rocca, 2022. "Bombs and Babies: Exposure to Terrorism and Fertility Choices in Nigeria," Journal of African Economies, Centre for the Study of African Economies, vol. 31(5), pages 487-510.
    4. Adelaja, Adesoji & George, Justin, 2019. "Terrorism and land use in agriculture: The case of Boko Haram in Nigeria," Land Use Policy, Elsevier, vol. 88(C).
    5. Daniel S. Hamermesh, 2007. "Viewpoint: Replication in economics," Canadian Journal of Economics, Canadian Economics Association, vol. 40(3), pages 715-733, August.
    6. Robert Finger & Carola Grebitus & Arne Henningsen, 2023. "Replications in agricultural economics," Applied Economic Perspectives and Policy, John Wiley & Sons, vol. 45(3), pages 1258-1274, September.
    7. Ankel-Peters, Jörg & Fiala, Nathan & Neubauer, Florian, 2023. "Do economists replicate?," Journal of Economic Behavior & Organization, Elsevier, vol. 212(C), pages 219-232.
    8. Lucas C. Coffman & Muriel Niederle & Alistair J. Wilson, 2017. "A Proposal to Organize and Promote Replications," American Economic Review, American Economic Association, vol. 107(5), pages 41-45, May.
    9. Bertoni, Eleonora & Di Maio, Michele & Molini, Vasco & Nisticò, Roberto, 2019. "Education is forbidden: The effect of the Boko Haram conflict on education in North-East Nigeria," Journal of Development Economics, Elsevier, vol. 141(C).
    10. Kaila, Heidi & Azad, Abul, 2023. "The effects of crime and violence on food insecurity and consumption in Nigeria," Food Policy, Elsevier, vol. 115(C).
    11. Joseph B. Ajefu & Soazic Elise Wang Sonne, 2022. "The association between terrorist attacks and mental health: evidence from Nigeria," Oxford Development Studies, Taylor & Francis Journals, vol. 50(4), pages 336-351, October.
    12. Ölkers, Tim & Kirchner, Ella & Mußhoff, Oliver, 2023. "Terrorism and land use in agriculture: The case of Boko Haram in Nigeria - a replication attempt of the paper by Adelaja & George (2019)," Land Use Policy, Elsevier, vol. 134(C).
    13. Sandip Sukhtankar, 2017. "Replications in Development Economics," American Economic Review, American Economic Association, vol. 107(5), pages 32-36, May.
    14. Fadare, Olusegun & Zanello, Giacomo & Srinivasan, Chittur, 2022. "The joint effects of terrorism and land access on livestock production decisions: Evidence from northern Nigeria," World Development Perspectives, Elsevier, vol. 27(C).
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    1. Mußhoff, Oliver & Ölkers, Tim & Kirchner, Ella, 2024. "A note on the discussion regarding terrorism and land use in agriculture," Land Use Policy, Elsevier, vol. 144(C).

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