Women in a 2011 group studied by Peter Cappelli of the Wharton School, University of Pennsylvania, Monika Hamori and Rocio Bonet of the IE Business School in Madrid, show increasing numbers of women and foreign educated managers in top positions at large corporations. Mary Barra of GM and Satya Nadella of Microsoft are two of the prominent names appointed recently. Women now have 18% of the top positions at large U.S. corporations and foreign educated have 11% in this 2011 group. The numbers would be expected to be higher in 2014 with an acceleration in this trend. On average it takes women 28 years to reach these positions compared to 29 for men. A big dropoff is noticed in the study for women in the corporate promotion track who are middle managers for a few years.