Lagged (Predictive) Analysis
Examining the temporal predictive power of HIP scores on future M&A returns
HIP scores have positive predictive power at 1 year (β = 0.112, p = 0.003) - ESG quality predicts short-term success.
The signal becomes statistically insignificant at 2 years, marking the transition zone.
At 3-4 years, the effect reverses - high HIP scores predict lower returns, consistent with mean reversion.
1-Year Lag
p=0.003
2-Year Lag
p=0.198
3-Year Lag
p=0.026
4-Year Lag
p=0.002
| Lag | Beta | SE | t-stat | p-value | R² | Direction | Interpretation |
|---|---|---|---|---|---|---|---|
| 1-Year | +0.112 | 0.038 | 2.95 | 0.003 | 0.052 | positive | 1-year lag shows positive predictive power |
| 2-Year | +0.045 | 0.035 | 1.29 | 0.198 | 0.018 | neutral | Signal weakens at 2-year horizon |
| 3-Year | -0.089 | 0.040 | -2.23 | 0.026 | 0.038 | negative | Reversal effect emerges at 3-year lag |
| 4-Year | -0.134 | 0.042 | -3.19 | 0.002 | 0.061 | negative | Strong reversal at 4-year lag |
HIP scores demonstrate positive predictive power at the 1-year horizon (β = 0.112, p = 0.003), meaning high-ESG companies tend to outperform in the year following measurement. However, this signal decays rapidly - becoming insignificant at 2 years and fully reversing at 3-4 years. By year 4, HIP scores have significant negative predictive power (β = -0.134, p = 0.002), consistent with mean-reversion in ESG premiums. The market initially rewards ESG quality but eventually corrects this pricing.
- Short-term signal: 1-year lagged HIP scores may have tactical value for identifying near-term outperformers after acquisitions.
- Mean reversion: ESG premiums fully reverse at 3-4 year horizons, suggesting they reflect temporary mispricing rather than fundamental value.
- Market efficiency: The initial ESG-driven mispricing is corrected over time as real integration performance replaces expectations.
- Strategy risk: ESG-tilted portfolios face significant reversal risk beyond the 2-year mark - holding too long erodes returns.