This post was originally published at bcg.perspectives. By Douglas Beal, Florian Dahl, Sophie Eisenmann, Daniel Nowack, and Frauke Uekermann
A growing number of companies around the world have launched social-business subsidiaries as part of an agenda to bring about positive change. Such businesses are designed to solve a social problem, such as unemployment, malnutrition, or hunger. Unlike a charity, a social business aims to be financially self-sustaining; profits are reinvested to advance its social mission. It is notable and encouraging that large corporations, in particular, are joining this movement, given their deep expertise and ability to scale up initiatives rapidly.
Since 2012, BCG has been partnering with microfinance and microcredit pioneer Muhammad Yunus—a recipient of the Nobel Peace Prize and the founder of Grameen Bank and Yunus Social Business—to advance social-business initiatives. In the course of this collaboration, we have discovered that a social business does not just have a positive impact on the community it is designed to serve. It also delivers tangible benefits to the parent company. (See The Power of Social Business, BCG report, November 2013.) While some of these benefits are to be expected (such as positive brand perception and strong employee engagement), others are perhaps more surprising. We have also learned that companies do not automatically achieve these benefits when they launch a social business. They must be earned through careful upfront planning and thoughtful execution.

Have you heard of Giving Tuesday before? It is a movement to create an international day of charitable giving at the beginning of the Christmas and holiday season. Today we are encouraging you to spare what you can to create a better world - for the future of all of us.

Alexandre Furlan, CEO of Instituto Muda, has been building his business since he finished college 12 years ago. São Paulo generates 20,000 tons of waste on a daily basis. Yet only 5% of the residential buildings have public recycling collection service - the majority of it goes to landfill. Instituto Muda tackles the problem by picking and sorting recycled waste and donating it to waste

In the midst of profound setbacks, we have been able to carry out work which has shown us that we are an organisation that lives up to its mission and remains true to its purpose.