Random Effects Regression: A Mathematical Exposition

A post on random effects regression, comparing it to OLS and FE.

Geospatial Interpolation: Some Theory

Some theory about geospatial interpolation methods

Short Memo About Inverse Probability Weighting

A small derivation of the inverse probability-weighted estimator of the Average Treatment Effect on the Treated (ATT)

Sampling Variation in Linear Regression

A part of a 2-series blog post on sampling variation. Part II.

What is Sampling Variation?

A part of a 2-series blog post on sampling variation. Part I.