Why is a system for exchanging currencies necessary for international trade?

To control the global money supply
To increase trade barriers
To manage price stability and currency risk
To create a universal method for accurate currency exchange

A system for exchanging currencies is necessary for international trade for several reasons:

1. To facilitate transactions: Different countries have different currencies, and a system for exchanging currencies allows businesses and individuals to convert one currency into another easily. This facilitates the trading of goods and services across borders.

2. To manage price stability and currency risk: Currency exchange rates can fluctuate due to various factors such as economic conditions, interest rates, and political events. A currency exchange system helps manage these risks by providing transparent and accessible exchange rates, enabling businesses to anticipate and mitigate potential currency fluctuations.

3. To enhance market efficiency: A system for exchanging currencies promotes market efficiency by enabling businesses to engage in international trade without being hindered by complex and costly currency conversion processes. It helps businesses more accurately assess the costs and benefits of engaging in international transactions.

4. To create a universal method for accurate currency exchange: A well-functioning currency exchange system provides a standardized method for accurately converting one currency into another. This offers certainty and transparency in currency exchange rates, ensuring fair and reliable transactions in international trade.

Overall, a system for exchanging currencies is necessary for international trade to facilitate transactions, manage currency risks, enhance market efficiency, and provide a method for accurate and transparent currency exchange.