Tag: confounding

Interview Questions

• The sushi-and-Sharpe trap
• More police, more crime?
• The hospital with the worst survival rates
• Better in every group, worse overall
• Why correlation is not causation
• Simpson's paradox in broker fill rates
• Two analysts, two quarters, a reversal
• More leverage, higher Sharpe? A pooled-data trap
• When disaggregating is the wrong move
• Simpson's paradox with two trading regimes