This manual explains the why, the how, and the when of the international price and volume comparisons of GDP organised by Eurostat and the OECD and it provides advice on the use and interpretation of PPP figures they publish.

The launch of the euro reinforces the foundations for unprecedented economic integration encompassing 11 countries, 16 per cent of world GDP and 290 million people. For the first time, the OECD has studied the euro-area as a fully-fledged economic entity and has analysed the intensive...