IB International Economics HL Practice Exam 2026 – Complete Study Guide

A monetary union is a group of countries that adopt a single currency or pegs their currencies to each other, which leads to several distinct benefits. One of these is the reduction of exchange rate risks, as member countries share a common currency, making trade and investment more predictable and stable.

Additionally, price transparency is enhanced in a monetary union because consumers and businesses can easily compare prices across member countries, knowing that the same currency is being used. This can lead to increased competition and efficiency in markets.

Moreover, enhanced international bargaining power can arise from a monetary union because unified economies can amplify their negotiating strength on the global stage. A combined economic front may yield better terms in trade agreements or financial negotiations.

The option that does not represent a benefit of a monetary union is the increase in transaction fees. In fact, one of the advantages of a monetary union is the opposite: it tends to reduce transaction costs associated with currency conversions and exchange, leading to streamlined trade and investment among member countries. Therefore, the notion of higher transaction fees contradicts the fundamental purpose of establishing a monetary union, making it the correct choice for what is not associated with such a union.