Microfinance for bankers and investors : understanding the opportunities and challenges of the market at the bottom of the pyramid / Elisabeth Rhyne. Rhyne, Elisabeth. Microfinance. Investments. Banks and banking. HG178.3 .R494 2009 332 RHM 22 Includes bibliographical references (p. 299-315) and index. New York : McGraw-Hill, c2009. c2009. 2009 Text xix, 331 p. : eng