Research & Analysis

Essays & Journal

Current arguments, visual data stories, reproducible evidence audits, and peer-reviewed research.

Showing 36 publications

Europe Is Flying Again. But the Old Hub Map Is Not.
Data StoryAviation & Economic Geography

Europe Is Flying Again. But the Old Hub Map Is Not.

EU commercial flight movements recovered to 98% of 2019. European hub connectivity recovered to 88%. Frankfurt shows why frequency, seats, passengers, and connectivity need separate measures.

Aug 30, 2026Data story · 10 min read
AI Exposure Is Not a Jobs Forecast
Data StoryEconomics of AI & Labor

AI Exposure Is Not a Jobs Forecast

Across 831 U.S. occupations, relative AI exposure and projected labor demand resolve into different distributions.

Aug 28, 2026Data story · 11 min read
Where Heat Became Routine in Germany
Data StoryClimate & Spatial Economics

Where Heat Became Routine in Germany

Across 400 districts and 35 years, extreme heat shifted from an occasional disruption into a recurring operating condition.

Aug 28, 2026Data story · 7 min read
Does a Planned City Age Gracefully?
Data StoryUrban & Demographic Economics

Does a Planned City Age Gracefully?

Tychy’s estates reveal visible age and access differences, but a twenty-estate model cannot turn planning chronology into a causal effect.

Aug 27, 2026Data story · 24 min read
The Wrong Border
Data StoryClimate & Spatial Economics

The Wrong Border

Three city averages yield one ranking. But 74.6% of population-weighted midday surface-temperature variation lay inside the cities.

Aug 25, 2026Data story · 14 min read
The German Order-Conversion Gap
ResearchIndustrial Economics

The German Order-Conversion Gap

The June divergence between German manufacturing orders and production is real; a post-2021 structural break is not established.

Aug 19, 2026Evidence audit · 16 min read
Composition Is Not Adjustment
ResearchRegional & Demographic Economics

Composition Is Not Adjustment

The coefficient survives. Its meaning changes once convergence, capacity, and within-Land adjustment become visible.

Pre-submission working paper · version 0.9.3
Aug 18, 2026Pre-submission · 37-page paper
Systemic Catastrophe under Architecture and Ambiguity
ResearchEconomics of AI & Innovation

Systemic Catastrophe under Architecture and Ambiguity

Component reliability does not determine systemic safety. This second-revision manuscript derives a systemic-failure rate from dependence architecture, then composes it with welfare exposure and model ambiguity.

Unpublished research manuscript · second revision
Aug 11, 2026Research dossier · 39-page paper
The Probability Is Vanishing. The Risk Is Not.
EssayEconomics of AI & Innovation

The Probability Is Vanishing. The Risk Is Not.

Tail pressure, dependence architecture, and why a falling catastrophe probability is reassuring only when it falls faster than welfare exposure grows.

Aug 11, 202626 min read
Solow After the Machine II: The Bottleneck Has Moved
EssayAI Economics

Solow After the Machine II: The Bottleneck Has Moved

A forensic BEA–BLS evidence audit corrects the apparent AI productivity gap, opens 61 industries to inspection, and traces where capability disappears before it becomes durable output.

Aug 5, 202636 min read
The Idea Factory Meets the AI Factory
EssayGrowth Economics

The Idea Factory Meets the AI Factory

Paul Romer, artificial intelligence, and the economics of validated knowledge: why growth depends on proof, absorption, and diffusion rather than candidate volume.

Aug 5, 202631 min read
The Token Is Not the Factor
EssayAI Economics

The Token Is Not the Factor

What Solow gets right about AI: capital, machine services, weak links, energy, adoption, productivity measurement, and the investment race.

Aug 2, 202642 min read
When Genocide Has a Throughput
AnalysisHolocaust Studies

When Genocide Has a Throughput

What train records reveal about Operation Reinhard: reconstructing the hyperintense 'pulse' of late-summer 1942 through rate-centric genocide analysis.

Dec 20, 202525 min read
The Great Sobering in Climate Economics
AnalysisClimate Economics

The Great Sobering in Climate Economics

A research digest from November 2025: Structural rigidities and the macroeconomic consequences of the 'missed decade' in climate policy.

Dec 5, 202518 min read
Canaries in the Coal Mine
AnalysisLabor Economics

Canaries in the Coal Mine

Generative AI as a Determinant of Labor Market Dynamics. New empirical evidence reveals a 13% employment decline for early-career workers in AI-exposed fields.

Nov 28, 202515 min read
ResearchClimate Economics

The Tyranny of Catastrophic Risks

Why standard economic models fail when facing low-probability, high-impact events like climate change. A proposal for a new risk-adjusted discount rate.

Ecological Economics
Oct 202415 min read
ResearchClimate Economics

The Price of Substitution

A deep dive into empirical substitution elasticities for climate policy modeling. How flexible is production really?

Energy EconomicsDOI
201620 min read
ResearchClimate Economics

Feed-In Tariffs and Wind Power in Germany

How Germany's feed-in tariff shaped the spatial equilibrium of wind investment (1996–2010) — and why grid integration becomes the hidden constraint.

Jun 201414 min read
ResearchScientometrics

The Industrialization of Economic Science

An empirical investigation into co-authorship patterns in environmental economics. How the 'lone wolf' model of research gave way to team science.

ScientometricsDOI
201418 min read
ResearchClimate Economics

Trade Liberalization and Environmental Quality

How international trade affects environmental outcomes through scale, composition, and technique effects—evidence from European manufacturing.

Environmental and Resource Economics
201316 min read
ResearchClimate Economics

How Can Pure Social Discounting Be Ethically Justified?

A rigorous ethical examination of intergenerational discounting—why market-rate arguments fall short, and how impossibility results reshape what 'fair' evaluation can mean on infinite horizons.

SSRN Working Paper (ZEW Discussion Paper No. 13-008)DOI
Feb 201318 min read
ResearchClimate Economics

Modeling Technological Change in Climate Economics

A comprehensive survey of how exogenous and endogenous technological change has been incorporated into climate-energy-economics models—and why these assumptions fundamentally shape policy recommendations.

SSRN Working PaperDOI
201325 min read

Join the Monthly Briefing

Get new essays and research digests delivered to your inbox. No noise, just signal.