Many investors like to invest in SRIs as a way to protest and give voice to their shared beliefs about a social cause, and feel that by making a certain investment, they are supporting their shared beliefs for a particular cause. Many unions and large pension funds that invest retirement money for millions of individuals have made investments or offered these types of investments to effect change through the pooling of resources of millions of members, as both members and managers of these investments want more socially impactful investments as part of their overall portfolios.