He works for a multinational firm, and thinks that open EU borders for goods and workers are a good thing (he had a great time at a Polish colleague's wedding).

ECONOMIST: Charlemagne

Do French and European voters want to keep open borders at a time when 24 million people are out of work or would they prefer some restrictions?

BBC: The French elections and Europe

Mercosur borders are more open in theory than fact: getting goods across can still be a time-consuming (and, at times, palm-greasing) affair.

ECONOMIST: Watch it, that��s us you��re trampling on