In the study ‘2018 GLOBAL SUSTAINABLE INVESTMENT REVIEW ’ of GSI-Alliance sustainable investment strategies are listed:
NEGATIVE/EXCLUSIONARY SCREENING : the exclusion from a fund or portfolio of some sectors, companies or practices based on ESG criteria (exclusions of companies operating in the tobacco, arms, alcohol, .. sector);
POSITIVE/BEST-IN-CLASS SCREENING : investments in selected sectors, companies or projects for positive ESG performance in relation to the market sector;
NORMS-BASED SCREENING : investment screening with respect to minimum standards of business practices based on international standards issued by UNICEF,OECD, ILO e UN;
ESG INTEGRATION : the systematic and explicit inclusion in investments of environmental, social and governance factors in the financial analysis;
SUSTAINABILITY THEMED INVESTING: investments in themes or activities specifically related to sustainability (e.i. clean energy, "green" technology or sustainable agriculture);
IMPACT/COMMUNITY INVESTING : targeted investments aimed at solving social or environmental problems, and which include investments aimed at the community, where capital is specifically addressed to needy individuals or communities, as well as financing for businesses with clear social or environmental goals;
CORPORATE ENGAGEMENT AND SHAREHOLDER ACTION : uses the power of shareholders to influence the behavior of the company, also through the direct engagement of the company (e.i., direct communications with the senior management and/or board of directors of the companies), presenting the proposals of the shareholders and the votes with ESG guidelines.
Furthermore the Financial Times in the article, published in May 2019, "ESG rating agencies fulfill the need for a know-how" interviewed the sustainable investment managers of some large companies to understand how they are used and how reliable these ratings are. The study found that investors, in their analyzes, take into consideration the ratings of different providers by comparing them with each other. In some cases, the various factors are also evaluated, therefore not only the ESG rating, a unique indicator for the three components, is taken into consideration, but also the assessment by single factor is taken into consideration:
Environmental
Social
Governance
A negative aspect of sustainable investments is that this could lead to leaving the so-called "brown" industries, those polluting, which instead need to raise capital to undertake a transition and drastically reduce their environmental impact.
To prevent this from happening and to encourage sustainability projects, the 'transition' investments (transition bonds) were born and used by these polluting companies in the initial phase of the transition.
Attention to the transparency of companies and to environmental, social and governance impacts is at 360 degrees and these new values that go alongside the traditional in the choice of investments can really make the difference.
But are ESG ratings really able to influence the performance of instruments on the market?
This is one of the questions behind the Politecnico di Milano study ‘La relazione fra rating ESG e lo spread di rendimento dei titoli obbligazionari sui mercati europei’, which compared a set of instruments on the market with a low ESG rating to a set with a high ESG rating and what emerged was that, while these ratings had almost no impact until 2016, in recent years yields were effectively influenced by the ESG rating.
The results are consistent with the hypothesis that the market, over time, has attributed a negative 'spread' to broadcasters with the best ESG score, judging them to be less risky in the short to medium term.
Furthermore, the impact of the rating of the single ESG factor on the market was studied and it emerged that the decisive parameter is by far the one linked to good governance; on the contrary, the Environmental and Social factors seem rather to push in the opposite direction.
In fact, it seems that good governance leads investors to consider it as a sign of lower agency costs, risks of opportunistic behavior and better monitoring and therefore to give an idea of greater stability.