What it means
The idea of EMU is that countries sharing a market should also share a currency, so that businesses and households avoid the cost and risk of exchanging money across borders. The plan was set out in the Maastricht Treaty of 1992 and was introduced in stages.
The euro became the accounting currency in 1999, and notes and coins followed in 2002. There are two sides to EMU.
The monetary side means one currency and one central bank, the European Central Bank, which sets interest rates for the whole euro area. The economic side means that member countries keep control of their own taxes and spending but agree to common rules to prevent excessive deficits and debt.
To join the euro, a country has to meet convergence criteria, which are tests of economic similarity. These cover price stability, government finances, exchange rate stability and long-term interest rates.
For example, the government deficit is meant to stay below 3% of gross domestic product and public debt below 60%. For businesses, EMU removes exchange rate risk between member countries and makes prices easier to compare.
Finance teams with operations in the euro area can pool cash, simplify intercompany transactions and use one currency for budgeting. On the other hand, a single interest rate may not suit every country at once, since economies can be at different stages of the cycle.
A key nuance is that EMU is not the same as the European Union, and not every EU member uses the euro. Some countries have chosen to stay out and keep their own currencies.
It is also worth knowing that the same three letters can stand for other things, so always check the context.
In practice
Real-world examples.
Example
A furniture retailer in Spain imports timber from Finland. Because both countries use the euro, there is no currency conversion, and the retailer can agree prices without a foreign exchange hedge. The finance team saves on bank charges and avoids exchange rate surprises.
Example
A treasury manager at a multinational with subsidiaries in five euro-area countries sets up a single cash pool in euros. Balances from each subsidiary are combined each night to reduce borrowing needs. The company cuts its interest costs by using surplus cash in one country to fund another.
Example
A government finance official reviews the budget to check whether the deficit and debt levels meet the EMU rules. She finds that a planned spending increase would push the deficit above the reference value. The ministry adjusts the plan to remain within the rules.
Formula
Calculation
Deficit-to-GDP ratio = Government deficit / Gross domestic product x 100
Suppose a country has a GDP of $500,000,000,000 and runs a government deficit of $10,000,000,000. The ratio is 10,000,000,000 / 500,000,000,000 x 100 = 2%. That is below the 3% reference value, so this criterion is met. If the deficit rose to $20,000,000,000, the ratio would be 4%, which would exceed the limit.Case study
Seen in the real world.
Valdemar Components is a fictional manufacturer used here for illustration. Before its home country joined the euro, the company sold to customers in four neighbouring states and was constantly managing currency exposure. Its finance team spent about two days each month on hedging and reconciliations.
After the country adopted the euro, most of those exposures disappeared and the team redirected its time to analysing customer profitability. However, the company also noticed that interest rates set for the whole area were sometimes lower than its home economy needed, which encouraged some local competitors to borrow heavily. The story and figures are fictional and illustrative.
Looking more broadly, the finance director added a line to the board pack that tracks how euro area interest rate decisions affect the company. She argued that sharing a currency removes one risk but ties the company to decisions made for the whole region, so planning must include scenarios for rate changes as well as for sales volumes. The story and figures are fictional and illustrative.
Watch out
Common mistakes.
- Using EMU and EU as if they meant the same thing, when EMU is one part of the broader European Union.
- Assuming every EU country uses the euro, when several keep their own currencies.
- Believing member countries give up all control over fiscal policy, when they still set their own taxes and spending within agreed rules.
Questions
People also ask.
What is the role of the European Central Bank?
It sets monetary policy for the euro area, aiming mainly at price stability.
What are the convergence criteria?
They are tests on inflation, government deficit and debt, exchange rate stability and long-term interest rates that countries must meet before adopting the euro.
Can a country leave EMU?
The treaties do not set out a simple process for leaving the euro, and doing so would be legally and economically complex.
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