U.K.Treasury chief George Osborne said Monday that a British exit from the European Union could permanently damage its economy, as the government laid out its most detailed assessment yet of the potential economic implications of leaving the bloc. Mr. Osborne, citing a new government analysis, said the U.K. economy could be around 6% smaller in 2030 if it left the EU than if it remains a member. That is a loss of income equivalent to GBP4,300($6,107) a year for every British household, Mr. Osborne said. Backers of a British exit dismissed the report. Conservative lawmaker Peter Bone called the predictions " ... (full story)