'CSR' and 'Corporate Governance' are 2 sides of a coin, 'Sustainability' being the EDGE of that coin! Notes from my session on Corporate Governance for PG Diploma in CSR course.
Triple bottom line (abbreviated as TBL or 3BL) is an accounting framework with three parts: social, environmental (or ecological) and financial. "three pillars of sustainability“ ecological footprint, natural capital human capital. A social economy develops because of a need for new solutions for issues (social, economic or environmental) and to satisfy needs which have been ignored (or inadequately fulfilled) by the private or public sectors.