为什么加息美元升值

加息是一个国家或地区央行提高基准利率的行为，这通常会导致借款成本增加，从而影响货币的价值。而在加息的情况下，美元往往会出现升值的趋势。那么，为什么会出现这种情况呢？

英文翻译对照：Why does the US dollar appreciate during interest rate hikes?

首先，加息会使得美元的借款成本增加。这意味着使用美元进行借款的代价变得更加昂贵。因此，许多借款人会选择使用其他货币进行借款，从而导致了美元的流出。当美元供应量减少，而需求量不变或增加时，美元的价值就会上升。

英文翻译对照：Firstly, interest rate hikes increase the borrowing cost of dollars. This means that the cost of using the US dollar for borrowing becomes more expensive. Therefore, many borrowers choose to use other currencies for borrowing, resulting in a decrease in the supply of dollars. When the supply of dollars decreases, and the demand remains unchanged or increases, the value of the US dollar will rise.

其次，加息还会增加投资者对美元的需求。随着利率的提高，美元资产的回报率也会相应增加。因此，更多的投资者会选择购买美元资产来获得更高的回报。这种需求的增加也会推高美元的价值。

英文翻译对照：Secondly, interest rate hikes increase the demand for US dollars. As interest rates rise, the returns on US dollar assets also increase accordingly. Therefore, more investors choose to purchase US dollar assets to obtain higher returns. This increase in demand also drives up the value of the US dollar.