Brussels, 12/01/2005 (Agence Europe) - The economic leap forward by Ireland over recent years has enabled it to group of richest countries in the world. Luxembourg is still at the head, and whose GDP per head of the population is double the OECD zone average (base 100). In a study by the Organisation for Economic Cooperation and Development (OECD) in 2002 and published on Tuesday, the Irish are in fourth place, behind the Norwegians, Americans, but ahead of the Swiss. Since the OECD...