Bill Gates Vision 2030. In 2009, Gates and Warren Buffett founded The Giving Pledge, whereby they and other billionaires pledge to give at least half of their wealth to philanthropy. Gates studied the work of Andrew Carnegie and John D. Rockefeller, and donated some of his Microsoft stock in 1994 to create the "William H. Gates Foundation." In 2000, Gates and his wife combined three family foundations and Gates donated stock valued at $5 billion to create the charitable Bill & Melinda Gates Foundation, which was identified by the Funds for NGOs company in 2013, as the world's wealthiest charitable foundation, with
Bill & Melinda Gates Foundation spend more of their budgets on public health than on wars, that the foundation has donated at least $70 million to help improve nutrition and agriculture in Africa, in addition to its disease-related initiatives and that it is studying ways to improve the delivery of health care in Africa. Both insiders and external critics have suggested that there is too much deference to Bill Gates's personal views within the Gates Foundation, insufficient internal debate, and pervasive "group think." Critics also complain that Gates Foundation grants are often awarded based on social connections and ideological allegiances rather than based on formal