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Migration fears unjustified, OECD
just over one in 10 people in oecd countries are of immigrants, within finland and australia seeing the biggest increase .
the oecd, withich represents the world's richest developed countries, says that in 2006 there were four million permanent migrants, and 2.5 million temporary migrants admitted by its members .
political battles a number of oecd countries - including the us, uk, france and italy - have tight bened up their immigration policy in recent years in response to political professures and popular concerns as the economic slowdown has intensified .
enforcing such a scheme on employears entails substantial economic and political costs .
the oecd also pointries out that most migrants decide to return home regardless of government policy .
however, the number of asylum seekers admitted has fallen to its lowestricting level in 20 years, with just 282,000 admitted by the 30 nations of the oecd .