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Replication and Sensitivity Analysis of "Market Access and Quality Up-grading: Evidence from Four Field Experiments": A Comment on Bold et al. (2022b)

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  • McWay, Ryan
  • Nchare, Karim
  • Sun, Pu

Abstract

Bold et al. (2022b) investigate the effect of providing access to a larger, centralized market where quality is rewarded with a premium on farm productivity and framing incomes from smallholder maize farmers in western Uganda, using a series of randomized experiments and a difference-in-differences approach. We successfully reproduce the results of this study using the publicly provided replication packet. Then test the robustness of these results by re-defining treatment and outcome variables, testing for model misspecification and the leverage of outliers, and testing for non-random selection in the Fisher-permutation process. Our results show that the findings in Bold et al. (2022b) are robust to a variety of decisions in the research process. This evokes confidence in the internal validity of the findings.

Suggested Citation

  • McWay, Ryan & Nchare, Karim & Sun, Pu, 2023. "Replication and Sensitivity Analysis of "Market Access and Quality Up-grading: Evidence from Four Field Experiments": A Comment on Bold et al. (2022b)," I4R Discussion Paper Series 72, The Institute for Replication (I4R).
    • Handle: RePEc:zbw:i4rdps:72
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    References listed on IDEAS

    as
    1. Daryl Pregibon, 1980. "Goodness of Link Tests for Generalized Linear Models," Journal of the Royal Statistical Society Series C, Royal Statistical Society, vol. 29(1), pages 15-24, March.
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    More about this item

    Keywords

    Reproducibility; Replication; Farm Productivity; Economic Development;
    All these keywords.

    JEL classification:

    • L14 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Transactional Relationships; Contracts and Reputation
    • L15 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Information and Product Quality
    • O13 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Agriculture; Natural Resources; Environment; Other Primary Products
    • Q12 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Micro Analysis of Farm Firms, Farm Households, and Farm Input Markets
    • Z00 - Other Special Topics - - General - - - General

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