What kind of reform did mikhail gorbachev begin in the 1980 and why?

M.Gorbachev began "Perestrojka" in 1980. He wanted the life of Soviet people to change for good. 

Introduced the "dry" law. Laurels American Mafia 30s haunted. all reforms 1)Temperance reform 2)personnel reform in the government 3)social reforms 4)Reforms in the foreign policy 6)Reformy political system of the USSR 7)Economic reform