Final answer:
The government started playing a more significant role in the 1930s due to economic crises, notably the Great Depression.
Explanation:
The government began to assume a much more important role in the 1930s as a response to the Great Depression. During this decade, various government interventions were implemented to address economic challenges, such as the New Deal programs in the United States under President Franklin D. Roosevelt.
Learn more about government intervention in the economy here:
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