Shihy27/african-multimodal-transport

# Uneven multimodal transport expansion reshapes regional economic divergence in Africa This repository contains the Python notebooks used for the analyses in *Uneven multimodal transport expansion reshapes regional economic divergence in Africa*. The study evaluates associations between the expansion of roads, paved highways, railways, railway stations, ports, and aeroway facilities and economic growth, sectoral development, individual welfare, and wealth inequality across African countries from 2015 to 2024. ## Repository contents | Notebook | Purpose | | ----------------------------------------------------- | -------------------------------------------------------------------------------------------------- | | `01_process_osm_infrastructure.ipynb` | Extract transport infrastructure layers from OpenStreetMap PBF snapshots. | | `02_clip_infrastructure_to_africa_arcpy.ipynb` | Clip annual infrastructure layers to the African study area (ArcPy). | | `03_project_infrastructure_layers_arcpy.ipynb` | Project infrastructure layers and calculate length/area attributes (ArcPy). | | `04_project_administrative_boundaries_arcpy.ipynb` | Project administrative boundaries and calculate areas (ArcPy). | | `05_process_wealth_inequality_data.ipynb` | Harmonize World Inequality Database records and construct wealth-distribution indicators. | | `06_psm_did_railway_impact.ipynb` | Estimate the Addis Ababa-Djibouti railway effect using PSM-DID and event-study checks. | | `07_system_gmm_robustness_checks.ipynb` | Run dynamic-panel system-GMM robustness analyses. | | `08_multimodal_transport_economic_divergence.ipynb` | Pr …