Mikhail Gorbachev major campaign to limit alcohol consumption, which Gorbachev—who believed it would improve health and work efficiency—oversaw. His wife keenly supported the measure. As a result, crime rates fell and life expectancy grew slightly between 1986 and 1987. The reform had significant costs to the Soviet economy, resulting in losses of up to $100 billion between 1985 and 1990. Gorbachev later considered the campaign to have been an error. In April 1986 the Chernobyl disaster occurred; in the immediate aftermath, officials fed Gorbachev incorrect information to downplay the incident. As the scale of the disaster became apparent, 336,000 people were evacuated
State Council of the Soviet Union to elect a premier, or a person who would take Gorbachev's place if absent; the office of Vice President of the Soviet Union had been abolished following the failed August Coup that very same year. With the central government's authority greatly weakened by the failed coup, Gorbachev established a four-man committee, led by Russian SFSR Premier Ivan Silayev, that included Grigory Yavlinsky, Arkadi Volsky, and Yuri Luzhkov, to elect a new Cabinet of Ministers. This committee was later transformed into the Committee on the Operational Management of the Soviet Economy (COMSE), also chaired by Silayev, to manage the Soviet economy.