Por Candid
Por Aspen Institute, John S. and James L. Knight Foundation
Por W.K. Kellogg Foundation
Por Aga Khan Foundation USA, Charles Stewart Mott Foundation
Por Grantmakers for Effective Organizations (GEO), Monitor Institute
Por Grantmakers for Effective Organizations (GEO)
Por Cass Business School, Research Centre for Charitable Giving and Philanthropy (ESRC)
Por The Center for Effective Philanthropy (CEP)