Jeffrey Clark

Economist, Builder, Open-Source Contributor

PhD Student in Economics • Stockholm University

Verified at Stockholm University

I build data infrastructure and applied ML tools for economic research, geospatial analysis, and policy insights. My work blends econometrics with modern engineering to create systems that endure and deliver insight.

About

I'm a PhD student in Economics with a builder's mindset. I focus on structuring and scaling messy, high-dimensional data, from national registries and historical aerial imagery to scraped texts, in order to power modern empirical research.

I've developed tools used by researchers and government institutions alike, including RegiStream, an open-source system for streamlining register data workflows. I have also built a geospatial classifier that detects rural road upgrades in satellite imagery to measure development in remote areas.

My projects tackle real-world complexity: classifying academic CVs at scale, harmonizing multi-decade microdata, and fusing satellite data with policy outcomes. Whether it's registry harmonization, spatial modeling, or automating research workflows, I build systems that endure and deliver insight.

Technical Stack
Statistical Programming
Stata Python R
Web Development & APIs
Flask REST APIs Bootstrap
Data & ML Pipelines
PyTorch MongoDB PostgreSQL
Deployment & Infrastructure
Docker GCP AWS
Currently Building
Coming Soon
Let's Collaborate

Interested in building something together or discussing research ideas?

Selected Projects

RegiStream
Streamlining register data workflows

Developing an open-source ecosystem to label and manage Swedish register data. Used by researchers and government agencies. Built with Stata, Python, and GitHub Actions.

Presented at Statistics Sweden, National Audit Office, and Stockholm School of Economics.

Aerial History Project
Research Assistant • Infrastructure Engineering

Massive historical geospatial dataset from 1.8M aerial images. As an RA, I built autonomous orchestration tools to manage at-scale stitching across HPC clusters using Docker + Apptainer. Created systems for distributed processing coordination.

Research

Publications

Working Papers

Academic working papers and research manuscripts currently under review.

Coming Soon
Policy Briefs

Research summaries and policy recommendations for academic and public audiences.

Coming Soon

Academic Work

Rural Road Improvements and Local Agricultural Intensification: A Remote Sensing Evaluation in Mozambique
Master's Thesis • Stockholm School of Economics (2022)

Co-authored with Tamina Matti

Investigating the effects of rural road upgrades on agricultural output in northern Mozambique using remote sensing and machine learning methods.

Exogenous Change in the Regeneration of a Common Pool Resource and its Effect on Cooperation and Efficiency
Bachelor's Thesis • Stockholm School of Economics (2018)

Co-authored with Marcus Lindeberg-Goni

Investigating how climate change characteristics affect resource management through a dynamic common pool resource experiment with university students.