Britain's trade options after Brexit: no easy way out

By William Schomberg LONDON (Reuters) - Britain's status as a trade power has become one of the most contentious issues in the European Union membership referendum on June 23. The uncertain outlook for exporters, and the implications for investment in Britain, are driving much of the nervousness in financial markets where the pound has weakened sharply. "In" campaigners, led by Prime Minister David Cameron, warn that Britain's economy would suffer if it lost its unfettered access to the EU's sin