Theory
Short explanations connect assumptions, equations, and economic meaning.
Ceteris Lab is a student-friendly learning space for building econometrics intuition with simple explanations, formulas, small datasets, Python examples, graphs, and quick quizzes.
Regression lab preview
OLS fitwageᵢ = β₀ + β₁ educᵢ + uᵢ
Why Ceteris Lab?
Short explanations connect assumptions, equations, and economic meaning.
Run editable notebooks with pandas, matplotlib, and regression workflows.
Work with teaching datasets from wages, grades, firms, policy examples, and official indicators.
Translate coefficients, p-values, and model fit into careful language.
Module previews
Module
A practical bridge into econometrics with beginner-friendly notation, summary statistics, uncertainty, and Python data workflows.
Module 1
Core ideas for thinking like an applied econometrician: models, variables, error terms, data structures, and interpretation.
Module 2
Estimate and interpret one-variable regression models with fitted lines, residuals, R-squared, Python output, and practice projects.
Module 3
Learn how multiple regression estimates partial relationships, controls for observed differences, diagnoses omitted-variable bias and collinearity, and supports responsible Python analysis.
Module 4
Learn how to make statistical inferences in multiple regression using t tests, p-values, confidence intervals, linear restrictions, F tests, and professional regression reporting.
Module 5
Learn how OLS behaves as sample size grows, why consistency matters, how large-sample inference works without normal errors, and how to use simulations and Python to understand asymptotic normality, asymptotic standard errors, LM tests, and asymptotic efficiency.
Module 6
Extend multiple regression beyond the linear-in-levels baseline by learning how scaling, logs, quadratics, interactions, adjusted R-squared, prediction, and careful controls change interpretation.
Module 7
Learn how to use qualitative information in regression with binary variables, categorical indicators, interactions, group-specific slopes, treatment evaluation, and linear probability models.
Module 8
Learn how changing error variance affects regression inference, how to use heteroskedasticity-robust standard errors and tests, how to diagnose heteroskedasticity, and when weighted least squares or feasible GLS may improve estimation.
Official Data Observatory
Explore official economic indicators and see how data becomes evidence.
World Bank
Live official data from the World Bank API.
FRED
Live official data from FRED.
BLS
Live official data from the Bureau of Labor Statistics API.
World Bank
GDP per capita
FRED
Unemployment rate
BLS
Unemployment rate
If a live source fails, Ceteris Lab uses server caching where available. If no cached official response is available, the card is marked unavailable rather than showing fake data.