Answer:
The Soviet Union's collapse not only threw economic systems and trade relations throughout Eastern Europe into a tailspin, it also produced the upheaval in many Eastern European countries and led to increased crime rates and corruption within the Russian government.
Explanation: so basically, the Era of Stagnation in the mid-1970s was triggered by the Nixon Shock and aggravated by the war in Afghanistan in 1979 and led to a period of economic standstill between 1979 and 1985.