The economy may be in the tank, but business is still booming for Andrew Yang. The CEO of MBA test-prep firm Manhattan GMAT told the Voice in October that enrollment was up 50 percent from 2007. "November and December are usually quiet months for us," he recalls. "That said, we're [still] up 50 percent from last year," with 776 students signing up compared with 515 in 2007. With January usually Manhattan GMAT's third-busiest month of the year, Yang is... More >>>