That will be this Deutchse Bank:
In previous reports, Deutsche Bank has argued that without pre-planning, as reports indicate is the case, the ruling UK government is risking financial stability if it rejects a currency union between what would be two separate nations. This could have negative consequences. While the Bank of England has drawn up contingency plans, Scottish independence would be considered a major negative for England’s currency, the Sterling. If separation took place, the UK would lose its most productive region – and source of tax revenue. As a result, its current account deficit would broaden, deepening its debt wows, and a new border would be imposed with its now second largest trading partner, the report highlighted. Such a vote could lead to a delay in rate hikes and “raising the prospect of a null and void 2015 election."
source http://www.valuewalk.com/2014/09/scottish-independence/