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
Mikhail Gorbachev concrete agreement immediately, or for leading to a staged elimination of nuclear weapons. Reagan was persuaded by Richard Perle to reject limits on SDI testing because Perle thought that the far-reaching arms control deal proposed by the Soviets would improve the Soviet domestic economy and have a beneficial impact on the Soviet standard of living. In the long term, nevertheless, this would culminate in the signing of the Intermediate-Range Nuclear Forces (INF) Treaty in 1987, after Gorbachev had proposed this elimination on 22 July 1987 (and it was subsequently agreed on in Geneva on 24 November). In February 1988, Gorbachev