| Field | Before | After |
|---|---|---|
| Field Last Published | Before September 17, 2019 10:20 AM | After April 17, 2024 04:09 PM |
| Field Study Withdrawn | Before | After No |
| Field Intervention Completion Date | Before | After July 30, 2019 |
| Field Data Collection Complete | Before | After Yes |
| Field Final Sample Size: Number of Clusters (Unit of Randomization) | Before | After 30 villages. |
| Field Was attrition correlated with treatment status? | Before | After No |
| Field Final Sample Size: Total Number of Observations | Before | After 600 farmers. |
| Field Final Sample Size (or Number of Clusters) by Treatment Arms | Before | After 600 farmers, 4 experimental rounds. |
| Field Public Data URL | Before | After https://doi.org/10.7910/DVN/ALKOCV |
| Field Is there a restricted access data set available on request? | Before | After No |
| Field Program Files | Before | After Yes |
| Field Program Files URL | Before | After https://doi.org/10.7910/DVN/ALKOCV |
| Field Data Collection Completion Date | Before | After July 30, 2019 |
| Field Is data available for public use? | Before | After Yes |
| Field Keyword(s) | Before Agriculture, Environment And Energy | After Agriculture, Environment And Energy |
| Field Building on Existing Work | Before | After Yes |
| Field | Before | After |
|---|---|---|
| Field Paper Abstract | Before | After We examine the relationship between soil heterogeneity and investment in learning among farmers in Malawi using an experimental approach. Soil heterogeneity may both impede social learning and encourage experimentation. In our experiment, farmers contribute towards the purchase of a single soil test in the village in a threshold public goods game. This soil test provides farmers with valuable and actionable information. By randomly varying the plot selected for soil testing we establish the role of soil heterogeneity. We find that farmers contribute more when they perceive soils to be more similar to their own plot, but also free ride on others whose soils they perceive as similar. This free riding increases in larger groups of farmers with similar soils. Despite this, all villages consistently contribute enough to purchase the soil test. |
| Field Paper Citation | Before | After Berazneva, Julia, Annemie Maertens, Wezi Mhango, and Hope Michelson. 2023. “Paying for Agricultural Information in Malawi: The Role of Soil Heterogeneity.” Journal of Development Economics 165 (October): 103144. |
| Field Paper URL | Before | After https://doi.org/10.1016/j.jdeveco.2023.103144 |