When one thinks of scientific research and development, one probably thinks of new medicines and new technologies. But what is scientific R & D meant experimental social programs? "Social innovation, or social entrepreneurism, has become a buzz among policymakers, scientists, and citizens throughout the world. One reason is that social challenges are becoming more numerous, important and urgent, and the cost of not solving them is increasing dramatically, Yuko Harayama said during a panel on social innovation in Washington last week."