A currency union is when several independent sovereign nations share a common currency. This has been a recurring phenomenon in monetary history. In this article I study the theoretical foundations of such unions, and discuss some important currency unions in history, most notably the case of...

Objective: The objective of the article is to determine which exchange rate regime provides higher bilateral trade: fixed rate or currency union. Research Design & Methods: An index was designed based on variables commonly recognised as those that might affect the value of bilateral trade and...

What is the optimal number of currencies in the world? Common currencies affect trading costs and, thereby, the amounts of trade, output, and consumption. From the perspective of monetary policy, the adoption of another country's currency trades off the benefits of commitment to price stability...