The Rural Mobilization Gap
Intermediary selection vs. market structure in the U.S. New Markets Tax Credit
The U.S. New Markets Tax Credit, enacted in 2000, is the largest place-based tax-credit program in the United States. Over its first two decades it deployed $66.6 billion of federal-credit-subsidized capital into 8,024 projects whose combined cost was $120.9 billion, implying a program-wide mobilization ratio of 0.82 — every federal dollar pulled in $0.82 of additional non-federal capital. This site is the companion to a working paper that asks one thing about that program:
Does the credit mobilize private capital differently in rural versus urban markets — and if so, is the gap a market-structure phenomenon (rural markets are structurally less leverageable) or an intermediary-selection phenomenon (the CDEs allocated to rural deals are systematically less effective at mobilization)?
The headline finding, established by a layered fixed-effects regression on every project the program has ever funded, is that roughly 80% of the aggregate rural mobilization gap is intermediary selection. When we hold the CDE constant — when the same intermediary deploys both metro and non-metro deals in the same year and project type — the rural penalty collapses to statistically zero. The rural gap is real; the market-structure framing for it is mis-specified.
0.1 How to read this site
The chapters below are sequential but each stands alone. If you have limited time:
- For the punchline, read Results and Interpretation — about 12 minutes.
- For the empirical strategy in detail, add Empirical strategy — another 15 minutes.
- For the explorer’s view of the data, open The map — an interactive globe of every geocoded project, with year-range and metro filters.
- For the full paper as a structured argument, read What is NMTC through Where this goes next in order.
0.2 Reproducibility
Every figure and every regression on this site is regenerated by a single command from the SHA-256-anchored raw data:
git clone https://github.com/ihelfrich/us-nmtc-viewer
cd us-nmtc-viewer
pip install -r requirements.txt
python3 scripts/describe_nmtc.py # raw .xlsx → cleaned CSVs
python3 scripts/make_figures.py # → 6 PNG figures
python3 scripts/run_regressions.py # → main_table.csv, bunching, etc.Total runtime: about two minutes on a laptop. Source files, including the original CDFI Fund release, live at https://github.com/ihelfrich/us-nmtc-viewer.
0.3 Citation
If you cite or reference this work, please use:
Helfrich, I. T. (2026). The Rural Mobilization Gap in U.S. Place- Based Tax Credit: Intermediary Selection vs. Market Structure in the New Markets Tax Credit. Working paper. https://nmtc.ianhelfrich.com
The data is in the public domain (17 USC §105) per the CDFI Fund disclosure. The analysis is © 2026 Dr. Ian Helfrich; the prose, figures, and code are released under CC-BY-SA 4.0 with attribution.