The depression didn't reach the USSR because the USSR did not have a capitalist government. It also didn't have a stock exchange and didn't trade with any capitalist governments. The USSR was also very isolated because of communism.
<span>Lesotho
The Kingdom of Lesotho, located in southern Africa, is completely surrounded by the country of South Africa. The capital of Lesotho is Maseru. Lesotho was previously known as Basutoland. Lesotho gained independence from the United Kingdom in 1966. The country is a member of the United Nations. Forty percent of its inhabitants live below the poverty line.</span><span />
The Open Door Policy is a term in foreign affairs initially used to refer to the United States policy established in the late 19th century and the early 20th century, as enunciated in Secretary of State John Hay's Open Door Note, dated September 6, 1899 and dispatched to the major European powers.[1] The policy proposed to keep China open to trade with all countries on an equal basis, keeping any one power from total control of the country, and calling upon all powers, within their spheres
They did not want to share political and economic freedom with freed slaves.