Sean Callahan

On the job market, 2026–27

Sean Callahan

Economics PhD candidate, Colorado State University

I study how fiscal shocks travel through production networks — why a contraction in one country–sector shows up as lost employment in another, and what that implies for how fiscal policy is designed and coordinated.

Read the job market paper Curriculum vitae (PDF)

Sean Callahan

Research

Fiscal transmission in production networks

Using FIGARO inter-country tables and a network granular IV design, I estimate how fiscal shocks propagate through European input–output structure. Consolidation travels powerfully backward along demand linkages into employment, but only weakly forward into prices — which puts quantitative discipline on where aggregate fiscal risk sits.

Structural transformation and the state

How the industrial composition of an economy evolves, and how policy steers it. This work treats network position as an instrument: which industries are systemically significant, and how institutional capacity and public ownership decide whether a shock is transmitted or absorbed.

Job market paper

Fiscal Transmission in Production Networks

Sean Callahan, 2026

Headline figure figures/jmp-headline.svg
One sentence stating the finding the plot shows, not the axes.

Working papers

A New Keynesian Model of Fiscal Transmission in Production Networks

Sean Callahan, 2026

Structural Change by Solidarity: A Model of the Rehn–Meidner Plan

Sean Callahan, 2026

Drafts are available on request — please get in touch.

Teaching

ECON 304

Intermediate Macroeconomics

Instructor of record, Fall 2025 through Fall 2026

New Keynesian theory, economic fluctuations, inflation, and growth.

Course page

ECON 240

Environmental Economics

Instructor of record, 2024–2025

Market failures, policy instruments, and sustainability economics.

ECON 204

Principles of Macroeconomics

Teaching assistant, 2023–2024

Introductory macroeconomics, with recitation sections and tutoring.

ECON 202

Principles of Microeconomics

Teaching assistant, 2022–2023

Foundational microeconomic theory and applications.

Contact

Email

sean.callahan@colostate.edu

Office

Social Sciences Hall C-3916B
Department of Economics
Colorado State University

Location

Fort Collins, Colorado
United States