Ethical Investment and Portfolio Theory: Using Factor Analysis to Select a Portfolio

DOI: 10.4236/jmf.2013.31A014   PDF   HTML   XML   4,346 Downloads   8,636 Views   Citations

Abstract

Ethical investments are a now a considerable sector in the investment market, with the Financial Times running the headline “Green and ethical investment comes of age” (Shepherd, [1]). Claudia Quiroz (lead fund manager for Cheviot Climate Assets Fund) predicts a strong future for ethical investment, with sustainable investment becoming a growing theme (Hoskin [2]). Much previous research in the ethical investment field divides investments into two categories: acceptable or unacceptable. This paper builds on the work of Barracchini and Addessi [3], in viewing how ethical an investment is to be a different dimensioneach investment is seen as being on a continuum, from least ethical to most ethical. This paper takes the work of Barracchini and Addessi [3] from a theoretical construct to an approach which can be applied by practitioners. In order to make a workable method, this paper uses conventional portfolio analysis (which focus on risk and return), combined with principal components analysis in order to minimize the risk of a portfolio. It adopts a specific functional form for the saver’s utility function, to assess which assets appears most desirable using that person’s values.

 

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J. Simister and R. Whittle, "Ethical Investment and Portfolio Theory: Using Factor Analysis to Select a Portfolio," Journal of Mathematical Finance, Vol. 3 No. 1A, 2013, pp. 145-152. doi: 10.4236/jmf.2013.31A014.

Conflicts of Interest

The authors declare no conflicts of interest.

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