@unpublished{publication-13435, author={Krauss, Annette and Martinez, Catalina}, doi={http://dx.doi.org/10.2139/ssrn.2227301}, institution={University of Zurich}, number={04-2015}, series={Center for Microfinance 04 -2015}, title={What Drives Financial Inclusion at the Bottom of the Pyramid - Empirical Evidence from Microfinance Panel Data}, year=2015, }