Public-private partnerships (PPPs) have gained popularity in recent years as a way to address social and economic problems that are difficult or impossible for a single entity to tackle — such as alleviating poverty, increasing access to education or building resilience to floods. Often aided by multilateral organizations like the World Bank or the World Economic Forum, PPPs bring together national governments, private businesses, civic organizations and donors. As the participants pool resources and expertise to address the problems, they also help create and strengthen their own brands — be it companies or nations. Those benefits sustain the attractiveness of PPPs with multiple stakeholders, according to Gilbert Probst , managing director, Leadership Office and Academic Affairs and dean of the Global Leadership Fellows Program at the World Economic Forum in Geneva. He works in the area of managing growth, learning organizations and knowledge management, and consults with major companies worldwide.…