Context: The value of the U.S. dollar declined significantly during wartime, especially during the American Civil War, World War I, and World War II. The Federal Reserve, which was established in 1913, was designed to furnish an "elastic" currency subject to "substantial changes of quantity over short periods", which differed significantly from previous forms of high-powered money such as gold, national bank notes, and silver coins. Over the very long run, the prior gold standard kept prices stable—for instance, the price level and the value of the U.S. dollar in 1914 was not very different from the price level in the 1880s. The Federal Reserve initially succeeded in maintaining the value of the U.S. dollar and price stability, reversing the inflation caused by the First World War and stabilizing the value of the dollar during the 1920s, before presiding over a 30% deflation in U.S. prices in the 1930s.

Question: During which times does the value of the dollar typically decline?
Answer: wartime

Question: When was the Federal Reserve established?
Answer: 1913

Question: What was the Federal Reserve designed to furnish?
Answer: an "elastic" currency

Question: What had previously kept prices stable?
Answer: gold standard

Question: How much did the US prices deflate in the 1930s?
Answer: 30%

Question: During which times does the value of the dollar typically maintain value?
Answer: Unanswerable

Question: When was the Civil Reserve established?
Answer: Unanswerable

Question: What was the Civil Reserve designed to furnish?
Answer: Unanswerable

Question: What had previously kept prices declining?
Answer: Unanswerable

Question: How much did the US prices inflate in the 1930s?
Answer: Unanswerable