Raisa Velthuis' Code Repository

AI skills that converts messy quiz questions into Brightspace-ready CSV and QTI imports.

SAS program to perform two-stage least squares regression with double clustered standard errors using proc IML. The model has one regressor and one instrument, and does not include intercepts, following Pastor, Stambaugh, & Taylor (2015).

Imports Russell Indexes constituent data and adds CRSP permnos. This code can be reused to load other sets of Excel files that have the same structure into SAS.