Econometrics track

Simulated data, known truth, and identification logic you can see move.

This track introduces econometrics through deterministic simulated data. The first wave begins with simple OLS and then moves into omitted-variable bias, difference-in-differences, and instrumental variables for upper-undergraduate students.

Foundations

Start with regression fit, residuals, and coefficient interpretation.

Econometrics Regression Intermediate EasyEcon / Marimo

Upper-undergraduate econometrics

Simple OLS Regression

Adjust the data-generating process and watch the fitted line, coefficient estimates, and residual behavior move with noise, slope, and sample size.

Fitted line, residuals, precision, and known truth Open model

Identification wave

Then move into confounding, panels, and instruments.

Econometrics Causal inference Advanced EasyEcon / Marimo

Upper-undergraduate econometrics

Omitted Variable Bias

Change confounding strength and the omitted variable's effect to compare the true coefficient, the naive regression, and the fully controlled benchmark.

Bias direction, confounding strength, and benchmark truth Open model

Econometrics Panel data Advanced EasyEcon / Marimo

Upper-undergraduate econometrics

Difference-in-Differences

Adjust treatment effects, group gaps, noise, and trend violations to see exactly when the DiD estimate matches the truth and when it drifts.

Parallel trends, group means, and treatment-effect decomposition Open model

Econometrics Causal inference Advanced EasyEcon / Marimo

Upper-undergraduate econometrics

Instrumental Variables

See when IV improves on OLS, when weak instruments make the estimate unstable, and how exclusion violations undermine the design.

Endogeneity, relevance, exclusion, and weak instruments Open model

Also browse

Move across the broader economics catalog.

All models

Growth, business cycles, and open economy

Macroeconomics

From Solow and Ramsey to business-cycle dynamics, overlapping generations, endogenous growth, and open-economy adjustment.

Price theory to strategic interaction

Microeconomics

From partial-equilibrium price theory into consumer choice, firm behavior, and game theory.