London School of Economics (LSE) predicted the economic damage caused by the break-up of the UK would be two or three times worse than Brexit, given the amount of trade between Scotland and the rest of the country.The financial boffins also said that rejoining the EU would make little difference in the short term to the finances of an independent Scotland.But SNP ministers said there was "no reason whatsoever" that Scotland could not emulate the success of independent countries of similar