Macroeconomic stability

Low levels of inflation are the hallmark of stable and modern economies.Because a high level of inflation acts as a (seigniorage) and theoretically discourages investment, it is generally viewed as undesirable. In spite of the downside, many countries have been unable or unwilling to deal with serious inflationary pressures. Some countries have successfully contained them by establishing largely independent central banks. One such bank was the Bundesbank in Germany; as the European Central Bank is modelled on the Bundesbank, it is independent of the pressures of national governments and has a mandate to keep inflationary pressures low. Member countries that join the bank commit to lower inflation, hoping to enjoy the macroeconomic stability associated with low levels of expected inflation. The ECB (unlike the Federal Reserve in the United States of America) does not have a second objective to sustain growth and employment.

Many national and corporate bonds denominated in euro are significantly more liquid and have lower interest rates than was historically the case when denominated in legacy currencies. While increased liquidity may lower the nominal interest rate on the bond, denominating the bond in a currency with low levels of inflation arguably plays a much larger role. A credible commitment to low levels of inflation and a stable debt reduces the risk that the value of the debt will be eroded by higher levels of inflation or default in the future, allowing debt to be issued at a lower nominal interest rate.