Better or Worse Job Accessibility? Understanding Changes in Spatial Mismatch: Evidence from Medellín, Colombia

Authors: David Bernal; Gustavo A. García; Jorge Pérez-Pérez

Bernal, D., García, G., and Pérez-Pérez, J. (2025). "Better or Worse Job Accessibility? Understanding Changes in Spatial Mismatch: Evidence from Medellín, Colombia", Journal of Transport Geography, 128:104341

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📄 Overview

This repository contains all the code used to replicate the results of the paper:
“Better or Worse Job Accessibility? Understanding Changes in Spatial Mismatch: Evidence from Medellín, Colombia.”

All code (except for the final two scripts) is written in R.

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📁 Project Structure

• Data/
  Contains all data obtained from external sources, including shapefiles.

• Base/
  Stores intermediate files that are entirely generated by scripts.

• Output/
  Stores final results:

  • Results/: Data outputs derived from the analysis
  • Tex/: Tables formatted for LaTeX
  • Figueres/: Figures based on the results

• All files in Base/ and Output/ are fully replicable, as they are produced by running the code.

• R scripts are stored outside these folders to maintain a consistent working directory and streamline execution.

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▶️ How to Run the Code

1. Start with Master.R

   • This is the main script that runs all other scripts in sequence (52 total).
   • Scripts must be run in order.

2. Function Scripts

   • Some scripts are utility functions (e.g., Maps_Function.R).
   • Ensure they are in the same folder as Master.R—they are called from other scripts.

3. Working Directory Setup

   • Scripts begin with:

     setwd(dirname(rstudioapi::getActiveDocumentContext()$path))

   • This ensures the script uses its own path as the working directory—no need to manually set it.

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⚠️ Important Notes

• ❌ Do not run Scripts 2 and 3
  These download live data from Google and Bing APIs. You need API keys, and results will differ from the paper due to time sensitivity.

• 📦 Deprecated R packages

  • We use rgdal, which has been removed from CRAN.
  • Download it from the archive:
    https://cran.r-project.org/src/contrib/Archive/rgdal/
  • You must have Rtools installed to build it.

• 🧰 R Version

  • All scripts were tested in R 4.0.3 (64-bit)
  • Ensure package compatibility with this version.

• 📊 Stata Scripts

  • The final two scripts are written in Stata (version 16+ required).
  • Follow the instructions in Master.R to run them correctly.

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📬 Contact

If you have questions or issues replicating the code, feel free to reach out:

• vdbernal@cougarnet.uh.edu
• davidbernal224@gmail.com