Three-Toed Sloth

Growth and Debt (Advanced Data Analysis from an Elementary Point of View)

In which the relationship (if any) between GDP growth and government debt forms a bridge between causal inference and time series analysis.

Assignment, debt.csv

Update, 2 May: I have given up on posting solutions, but in this case I will make an exception, as well as directing the reader to the relevant comment form Biostatistics Ryan Gosling.