Independent Research

Spatial Econometrics, Supply Chain Vulnerability, and National Security Economics

Research at the intersection of foreign investment screening, critical supply chain analysis, and defense economics — built from primary-source government data and published across academic and policy outlets.

Former U.S. Army ADA Officer MBA PhD Candidate (Anticipated) 20+ Years Defense Systems and Software Engineering

Research Programmes

Active Research

Two interconnected research programmes — one in spatial econometrics applied to foreign investment screening, one in compound supply chain vulnerability analysis — drawing from the same primary-source government datasets and unified by the Mutual Threshold Saturation theoretical framework.

Strategic Geography of Foreign Agricultural Investment
Active — PhD

Spatial econometric analysis of whether foreign agricultural holdings attributed to adversarial-nation investors exhibit statistically significant clustering near U.S. military installations. Using USDA AFIDA primary data (2020–2024), Monte Carlo permutation testing against 71 CONUS installations, and multi-country comparative benchmarking. Central finding: Chinese holdings cluster at 3.4× enrichment (p<0.001) — nearly twice the allied-nation baseline of 1.8×. Nuclear-capable installations: 12.7× enrichment.

Structure: Three-article PhD by Published Work Data: USDA AFIDA, 71 CONUS installations Methods: Monte Carlo, Spatial Econometrics
Mapping Critical Supply Chain Dependencies: Mutual Threshold Saturation

Compound vulnerability analysis identifying 1,637 single-source or single-system supply chain dependencies across seven critical sectors — pharmaceuticals, critical minerals, semiconductors, fertilizer, energy, telecommunications, and physical infrastructure. Introduces the Mutual Threshold Saturation (MTS) framework: every major economy holds enough cross-cutting leverage that catastrophic action is irrational, but incremental below-threshold coercion remains continuously available. Derived entirely from open-source government data across 18 primary sources.

Sectors: 7 (pharma, minerals, semi, fertilizer, energy, telecom, infrastructure) Dependencies: 1,637 documented Sources: FDA, USGS, IEA, USDA, EIA, Commerce/DHS + 12 more

Publications

Published & Submitted Work

Academic articles, policy essays, and analytical commentary. Links updated as publications go live.

Academic Articles

SSRN / SEA Mutual Threshold Saturation Research Paper Submitted Mar 2026

Policy & Strategic Analysis

Foreign Affairs Everyone's Finger Is on the Trigger Query submitted
War on the Rocks The Compound Map Nobody Built Pitch submitted
Lawfare The Regulatory Archipelago Pitch submitted

Research Papers

Additional Commentary

Code & Data

Reproducible Research

Source code, processed datasets, and methodology documentation. All analysis is reproducible from publicly available government data.

SPATIAL ANALYSIS

AFIDA Monte Carlo Framework

Permutation testing framework for spatial clustering analysis of USDA AFIDA foreign agricultural holdings data against military installation coordinates. Includes haversine distance matrix, enrichment ratio computation, and multi-country comparative benchmarking.

↓ Download robustness_checks.py

Python 3 · NumPy · Pandas · SciPy

SUPPLY CHAIN LEDGER

MTS Dependency Ledger

88 enumerated single-source dependencies across 7 sectors with source attribution, tier classification, and methodology notes. The backbone dataset for the compound vulnerability analysis. Derived from 18 primary government sources.

↓ Download MTS_Dependency_Ledger_v2.csv

CSV · 88 rows · 12 fields

MULTI-COUNTRY RESULTS

Spatial Enrichment Data

Complete Monte Carlo results for 11 investor countries at four distance thresholds (10, 25, 50, 100 miles). Includes enrichment ratios, p-values, observed vs. expected counts, and significance classifications.

↓ Download multicountry_results.json

JSON · 11 countries · 4 thresholds

PRIMARY SOURCES

Government Data Reference Library

Index of all primary-source government databases used across both research programmes: FDA DMF, USGS MCS, IEA Critical Minerals Data Explorer, EIA Monthly Energy Review, USDA FATUS, ASHP drug shortage database, Commerce/DHS ICT assessment, IWUB reports.

→ View source index

18 primary sources documented

METHODOLOGY

Webb Analysis Statistical Framework

The fictional statistical methodology from Digital Harvest — validated against real USDA primary data. Monte Carlo permutation approach, enrichment ratio framework, and multi-country comparative benchmarking. Documentation of the creative-practice-to-empirical-validation pathway.

→ View methodology notes

Methodology documentation

FIGURES

Visualizations & Charts

Publication-quality figures from the spatial analysis: distance distributions, Monte Carlo permutation test results, multi-country enrichment comparison charts. Available for academic citation with attribution.

→ View figure gallery

PNG · Publication resolution

About

Robert J. Green

RG
Robert J. Green
Independent Researcher
Former U.S. Army Officer

I am an independent researcher working at the intersection of spatial econometrics, supply chain vulnerability analysis, and national security economics. My research uses primary-source government data — USDA AFIDA filings, FDA Drug Master Files, USGS mineral surveys, IEA energy data, and Commerce Department trade statistics — to address questions that existing analytical institutions are structured to miss.

My military career began as a U.S. Army Air Defense Artillery officer during the Cold War and ended in the Desert Storm/Desert Shield Era in the Florida Army National Guard. Two decades in defense systems engineering followed, building and analyzing complex technical systems for government and enterprise clients. This background informs both the questions I ask and the standards I apply: every claim must survive scrutiny from professionals who have lived in these environments.

The research on this site originated from an unusual pathway. While developing The Silent Conquest, a four-book geopolitical thriller series, I constructed intelligence-style analytical documents that required real methodology applied to real data. The fictional economist's spatial analysis framework produced significant results when validated against USDA primary data. The Mutual Threshold Saturation doctrine — conceived as a narrative device — proved to describe a measurable structural condition. The fiction generated the hypotheses; the research tests them. Both streams are represented here.

I hold an MBA and am preparing a PhD dissertation by published work in applied econometrics, with a focus on spatial analysis of foreign direct investment patterns as they relate to national security.

Education

PhD by Published Work (Anticipated)
Applied Econometrics — Spatial FDI and National Security
MBA
Business Administration

Service & Experience

U.S. Army — Air Defense Artillery Officer
Florida Army National Guard, 1987-1996
Defense Technology Professional
20+ years complex systems engineering for government and enterprise

Previous Publications

Nonfiction
ISBN 978-1-365-39865-0
Created: Jan 27, 2023
Nonfiction
ISBN 978-1-300-96986-0
Created: Oct 2, 2024
Nonfiction
ISBN 978-1-300-95687-7
Created: Nov 4, 2024

Fiction