The main causes of the world economic crisis (1929-1933) were Super monopolization of production, the absence of any regulation; the disproportion between the growth of production volumes and the level of income of a significant part of the population; the population's ability to pay decreased, and it was unable to buy goods, the number of which was increasing; the industrial crisis merged with agrarian overproduction. The rapid decline in prices for agricultural products ruined rural and farm enterprises, which immediately affected the domestic market; the crisis has dealt a tangible blow to world trade. The decrease in trade turnover led to the curtailment of international relations. The competition between international monopolies actually grew into a trade confrontation between countries. The nature of the crisis is a cyclical crisis of overproduction The depth of the crisis: the volume of industrial production fell by 38%, agricultural - by 1/3, world trade - by 1/3; The universality of the world crisis: it covered all capitalist countries (the USA and Germany suffered the most); covered all spheres of the economy (industry, villages / households, trade, finance); The traditional industries were particularly affected, while the new ones (chemical, aviation) were affected less sharply. Unemployment in the developed capitalist countries reached 26-30 million people.