The factors that contributed to the economic growth under President Calvin Coolidge were:
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an increase in the production of consumer goods by factories: This was a significant aspect of the economic boom during the 1920s, often referred to as the "Roaring Twenties."
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an increase in the number of stocks bought and sold by the public: The stock market experienced rapid growth during this period, contributing to economic expansion.
The other options, "careful government regulation of business" and "discouraging the accumulation of debt," do not accurately reflect Coolidge's policies. Coolidge favored a more laissez-faire approach with minimal regulation on businesses and generally encouraged economic activity, which sometimes led to increased debt levels.
So, the correct answers are:
- an increase in the production of consumer goods by factories
- an increase in the number of stocks bought and sold by the public