The main cause was the Stock Market Crash of 1929.
I think it’s b
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The Populists demanded an increase in the circulating currency which was to be achieved by the unlimited coinage of silver, government ownership of the railroads to prevent monopolies, the direct election of U.S. senators, and other measures designed to strengthen political democracy and give the farmers economic parity with the larger business powerhouse.
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Besides avoiding plagiarism, documentation provides a paper with PROFESSIONALISM.