Why did the exchange rate system affect the value of a currency?
Could you please explain to me in more detail why the exchange rate system has such a significant impact on the value of a currency? I'm particularly interested in understanding how fluctuations in the exchange rate system can lead to changes in the purchasing power of a currency and how this affects international trade and investment. I'd also like to know if there are any measures that can be taken to stabilize the exchange rate and minimize its negative effects on the economy.