Our problem - see our previous articles on this subject - has led to questions about a possible shortfall by investing in socially responsible. It is also the question raised by a study of Adrienne Pages: "Performance of Socially Responsible Investments: Issues and measures."

The author points out that any investor seeks to generate returns on its investment. The model most commonly used is the CAPM (model of asset pricing, CAPM, in French). This model explains that the goal of any investor is to maximize profitability while minimizing risk (represented by the variance of the portfolio). This is possible through diversification both geographically and sectorally. Therefore, the profitability could be adversely affected