This paper examines the direct and indirect effects of agricultural technological change on deforestation using the introduction of genetically modified soy in the Brazilian Amazon. Soy production replaced more land and labor intensive cattle ranching, slowing local deforestation. However, displaced cattle ranching relocated to connected areas, clearing forest elsewhere and offsetting 39% of the forest spared locally. Displacement is mediated by the road network, which enables labor mobility and continued access to fixed slaughterhouses. On net, the introduction of GM soy preserved approximately 25,600 sq. km of forest between 2003 and 2010.
| Repository name | URI |
|---|---|
| Reproducible Research Repository (World Bank) | https://reproducibility.worldbank.org |
Paper exhibits were reproduced on a computer with the following specifications:
• OS: macOS Tahoe
• Processor: Apple M4 Pro
• Memory available: 24.0 GB
At least 38 GB of available storage. macOS only.
Runtime ~ 15 hours.
To reproduce the findings in this paper, a replicator must:
bash data/raw/slaughterhouses/download_cnpj.sh. The script downloads the files (about 4.8 GB) and places them in data/raw/slaughterhouses/ with the names the code expects.all_non_classified_fines.parquet and place it in data/raw/ibama_fines/. code/config/paths py, add your computer's hostname, and set the project folder, code folder, and conda executable for your machine, following the commented example.code/shifting_landscapes_replication_pkg.Rproj in RStudio and run code/master.R. Note: Some inputs in data/raw/ were processed by the authors and are not the original public files:
The code for these steps is not included because processing the original data is time- and compute-intensive; the steps are described in the Data Appendix of the paper. The processed files are included in the package, and the reproducibility verification was run from them. Once the two datasets described in step 2 are downloaded, all code in the package runs from the data provided.
All data sources are publicly available. Two datasets are not included in the reproducibility package (due to size and personal information), and some files are provided already processed or as intermediate data due to size and processing restrictions. For more details, refer to the README file.
| Author | Affiliation | |
|---|---|---|
| Marie-Louise Decamps | World Bank | mdecamps@worldbank.org |
2026-10-13
| Location | Code |
|---|---|
| Brazil | BRA |
The materials in the reproducibility packages are distributed as they were prepared by the staff of the International Bank for Reconstruction and Development/The World Bank. The findings, interpretations, and conclusions expressed in this event do not necessarily reflect the views of the World Bank, the Executive Directors of the World Bank, or the governments they represent. The World Bank does not guarantee the accuracy of the materials included in the reproducibility package.
| Name | URI |
|---|---|
| MIT License | https://opensource.org/license/mit |
| World Bank IGO Rider | https://github.com/worldbank/metadata-editor/blob/main/WB-IGO-RIDER.md |
| Name | Affiliation | |
|---|---|---|
| Marie-Louise Decamps | World Bank | mdecamps@worldbank.org |
| Reproducibility WBG | World Bank | reproducibility@worldbank.org |
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Reproducibility WBG | DECDI | World Bank - Development Impact Department | Verification and preparation of metadata |
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