Grigory Yavlinsky. As a young economist at the time, Yavlinsky was asked to develop a plan for converting the state-run Soviet economy into a liberal one with free-market influences. However, Gorbachev did not implement his “500-day plan.” Later Yavlinsky served as leader of the liberal Yabloko party and ran for the presidency of Russia. See pp. 184,221,226,243-44, 257.