The Risks of Deviating from Academically-Validated Factors

Scientific Beta Publication (February 2019)
Felix Goltz, Ben Luyten

Link to the paper

Scientific Portfolio AI- Generated Summary

This publication from Scientific Beta discusses the pitfalls of constructing low carbon equity portfolios. The authors argue that many investors mistakenly believe that greenness is equivalent to alpha, leading to suboptimal investment decisions. They provide evidence that low carbon portfolios do not necessarily outperform their high carbon counterparts and that carbon scores should not be used as a sole criterion for portfolio construction.

The authors suggest that investors should use carbon scores as an alpha signal rather than a screening tool. They provide several strategies for incorporating carbon scores into portfolio construction, such as using a carbon score as a factor in a multifactor model or using a carbon score to tilt a portfolio towards low carbon companies. They also recommend using a carbon score in conjunction with other factors, such as value or momentum, to construct a diversified portfolio.

The authors conclude that constructing a low carbon equity portfolio requires careful consideration of the trade-offs between carbon reduction and financial performance. They argue that investors should not sacrifice financial performance for the sake of reducing carbon emissions and that a balanced approach is necessary. They also stress the importance of using carbon scores as an alpha signal rather than a screening tool and of incorporating carbon scores into a multifactor model or a diversified portfolio.

Overall, this publication provides valuable insights into the pitfalls of constructing low carbon equity portfolios and the strategies for incorporating carbon scores into portfolio construction. It is a must-read for investors who are interested in reducing their carbon footprint while maintaining financial performance.