Monetary standards exchange on an open market, much the same as stocks, securities, PCs, vehicles, and numerous different products and ventures. A currency's worth will vacillate contingent upon its free-market activity, much the same as whatever else. On the off chance that something expands supply or brings down interest for a currency, that currency will fall. For instance, when Greece took steps to default on its obligation, it undermined the presence of the euro, and financial specialists around the globe hurried to sell euros.