What banking reform finally gave the nation a flexible money supply?

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The banking reform that finally gave the nation a flexible money supply was the establishment of the Federal Reserve System in 1913. This reform brought significant changes to the U.S. banking system and monetary policy.

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1. Open the provided link: http://www.answers.com/topic/american-system-economic-plan

2. On the webpage, you will see the title "American System Economic Plan." Scroll down to find the section titled "Banking and finance" or use the search function on the page.

3. Within the "Banking and finance" section, you will find information about the establishment of the Federal Reserve System in 1913 and its role in providing a flexible money supply.

4. Read through the relevant information to understand how this banking reform impacted the nation's money supply and its significance in the American System Economic Plan.

Note: The link provided is to a specific webpage that discusses the American System Economic Plan, which includes information about the Federal Reserve System. For additional information on the topic, you can also explore other reputable sources such as textbooks, economic websites, or articles from financial institutions.