For currency exchange, whether it goes up or down, there are good and bad sides to it. First, there is a gap between rich and poor countries, and everyone wants to import from the wealthy countries. Therefore, people all over the world buy the currency of the wealthy country. As a result, the price of the currency rises. As the price rises, it becomes harder and harder to buy. In such a situation, if there is another country that can produce the product at a lower price, everyone will buy it there, and the products of the country that used to sell well will no longer sell well. I made a game out of such a mechanism. —description from the designer