NEW YORK--(BUSINESS WIRE)--MetLife Foundation announced today a three-year partnership with Rockefeller Philanthropy Advisors (RPA) and Bankable Frontier Associates, LLC (BFA) to develop Optimizing Performance Through Improved Cross(X)-Sell (OPTIX), a program to provide microfinance institutions and cooperatives with a breadth of financial tools that can assist them to better serve their clients. The microfinance institutions and cooperatives include: Cooperativa Acreimex in Mexico, Banco WWB i