George Stenberg

Economics, Concentration in Statistics · Grinnell College, Class of 2029

George Stenberg presenting to an audience
37 counties modeled 4,234 earnings announcements

I study economics at Grinnell and spend most of my time with data that needs cleaning before it can say anything. My research so far has looked at why health outcomes differ across reservation counties and how stock prices react when companies barely beat or barely miss earnings expectations.

I grew up in Fredericksburg, Texas, where I ran the city pool as Head Lifeguard for four summers. At Grinnell I sprint for the NCAA track and field team. I am looking for a Summer 2027 internship in economic research, data analysis, or finance.

LinkedIn → Resume (PDF) →

Research

Stock reactions at the zero-surprise threshold In progressFall 2026
Applied Econometrics, Grinnell College · with a classmate
Regression discontinuity · Stata · Bloomberg

Do markets treat a company that beats analyst expectations by a cent differently from one that misses by a cent? Using 4,234 S&P 100 earnings announcements from 2015 to 2025, pulled from a Bloomberg terminal, we line each announcement up with the right trading days, compute returns relative to the market, and use a regression discontinuity design at zero surprise. Early work shows reported earnings bunching just above zero, which is itself part of the story.

Geography as a Healthcare Barrier: How Isolation and Underfunding Drive Health InequalitySpring 2026
Health Economics, Grinnell College · with Jess Christensen · supervised by Prof. Hall
Regression analysis · R · ggplot2

Why do Native Americans living on reservations have worse health outcomes? We combined county-level health, poverty, and rural data for 37 counties and built four regression models and a t-test to test three barriers: geographic isolation, Indian Health Service underfunding, and poverty. The share of a county's population that is American Indian or Alaska Native explains about 79% of the variation in health scores on its own. Poverty is a key part of the mechanism, and once poverty and population share are in the model, rurality adds almost nothing, which changes where policy attention should go.

Scatter plot of 35 counties showing population health z-score rising with AI/AN population share, with a fitted regression line
Each point is a county (n = 35). Higher z-scores mean worse health outcomes. Line is the OLS fit with a 95% confidence band; slope 0.040 per percentage point, R² = 0.79.

Experience

Head LifeguardSummers 2023–2026
City of Fredericksburg · Fredericksburg, TX
Operations · Training · Supervision
  • Ran daily operations at the municipal pool and led shifts of up to eight lifeguards.
  • Planned and taught in-service training on rescues, certification standards, and emergency scenarios.
  • Handled safety incidents in real time, often without a supervisor on site.
Shift Lead and Swim Instructor2022–2026
Steven's Wellness Center · Fredericksburg, TX
Customer service · Operations · Teaching
  • Opened and closed the gym, coordinated staff, and solved members' problems on the spot.
  • Taught one-on-one swim lessons to students of all ages, from young children to adults, with a focus on water safety and confidence.
LifeguardCurrent
Grinnell College Pool · Grinnell, IA

Leadership & Athletics

NCAA Track and Field, Team Captain2025–Present
Grinnell College
Sprints · 100m PR 10.52

Sprinter and Grinnell record holder in three events.

Texas UIL State Champion, 100m2025
Fredericksburg High School · Team Captain

School record holder in three events. As captain I ran daily practices with teammates and served as the link between athletes and coaches.

Student Athletes Leading Social ChangeCurrent
Grinnell College · also Student Community Outreach

Volunteer on community service projects run by two campus organizations.

Skills

Statistics
Regression analysis, regression discontinuity, hypothesis testing, econometric modeling
Tools
R (tidyverse, ggplot2), Stata, Excel, Bloomberg Terminal
Research
Data cleaning, public health datasets, research writing, presenting findings
Leadership
Staff training and supervision, shift operations, incident management

Education

Grinnell CollegeExpected May 2029
B.A. in Economics, Concentration in Statistics · Grinnell, IA

Coursework: Applied Econometrics, Statistics, Health Economics, Calculus, Functional Problem Solving (Computer Science)