The authors examine what labour migration from the class of 2004 has meant for the countries that receive it.
ECONOMIST: A look at noteworthy articles from business journals
The migration of labour across State lines is obviously a matter of inter-state commerce.
FORBES: A Use For The Commerce Clause: Increasing US Labour Mobility Through Occupational Licensing
In 2004, the-then Labour government allowed free migration to the UK for workers from EU accession states including Poland, Hungary and the Czech Republic.
At the same time, if some states continue to be more prosperous than the others, it could lead to a big migration of labour from poor to richer states, the beginnings of which we are already starting to see.
Yet governments are often reluctant to leave migration flows to the labour market.
More generally, the authors predict a future of labour shortages in rich countries which only migration can solve.
Temporary curbs on Romanian and Bulgarian migration were imposed by the Labour government in 2005 to protect the UK labour market.
He said Labour had told people concerned about the biggest peacetime migration to the UK to "like it or lump it" and that the public had been "ahead of us" on the issue.
ELWa warns that failure to deliver would result in Wales getting caught in the low skills, low growth trap, which in turn would lead to a stagnant labour market, a breakdown of social cohesion and outward migration from many areas.
Immigration minister Damian Green said he had decided to extend the restrictions as he wanted to ensure migration from those countries delivered economic benefits to the UK and that he did not want migration to have adverse impacts on the domestic labour force.
BBC: Restrictions on Bulgarian and Romanian workers extended
And he vowed that a future Labour government would introduce "maximum transitional controls" to limit migration if the EU expanded to include more countries.
Campaign groups like Migration Watch argue that the majority of jobs created by Labour went to foreign workers, leaving the proportion of unemployed Britons little changed.
But former Labour minister Frank Field, co-chairman of the cross-party balanced migration group, said Mr Cameron was on the "right course" in requiring all those wishing to settle in the UK to speak basic English and making it "much tougher" for those working in the UK to eventually gain citizenship.
Martin Ruhs, director of the Oxford Migration Observatory, suggests it may be time for Britain to let its more labour-intensive farming slide.
Vincent William of the Southern African Migration Project, a regional initiative, says southern Africa should become a single labour market along the lines of the European Union.
Labour said the government had made a "no ifs no buts" pledge to slash net migration.
The situation has been exacerbated by increasing rates of rural to urban migration which have, on the one hand, deprived the rural areas of agricultural labour and, on the other, increased the demand on the limited social services in urban areas.
But according to John Salt and James Clarke of the Migration Research Unit of University College London, who have pulled together a lot of the numbers on labour flows, a striking change in the sources of foreign labour is taking place.
应用推荐