LETTERS: Size is no object

Sir: Andrew Marr claims (Comment page, 31 January) that Britain is "too small, too poor, and too involved in a complex, interconnected world to be able to recover political sovereignty outside the EU". Really? Then how does he explain the happy and prosperous sovereignty of Korea, or Canada, or New Zealand, or Hong Kong, or Switzerland, or Norway, or Singapore - all of which are trading nations, all of which are less populous and/or less rich than us, and all of which lie next to larger political entities?

Yours sincerely, Nicholas Jory London, N1