The Italian Self-discipline Code for listed companies updated 2018 recommends companies belonging to FTSE MIB, according to the comply or explain principle, to establish a devoted committee for sustainability matter and stakeholder relationships or to assess the possibility to manage these issues by other existing committees (art.4). In fact, FTSE MIB index is the main benchmark index of the Italian stock markets. The FTSE MIB Index measures the performance of 40 Italian stocks capturing about the 80% of the internal market capitalization, and it is composed of companies of primary importance and high liquidity in different industries