in order to install all requirements, activate your venv and execute the following command pip install -r requirements.txt data.csv is the data downloaded from wrds with the code in data_download.ipynb 5A_data.csv is the data from the 5th exercise. Since doing a rolling OLS on a loarge dataset takes a while, it's easier to have it loaded for futher use than recomputing each time. 3_4_5.ipynb contains the solutions (not totally comlete) for the first 3 exercises