The "West Lothian question" -- of whether Scottish MPs should be able to vote on issues which only apply south of the Scottish border while having exclusive power over their own country -- has become a more vexed issue in the U.K. in recent years.
Another bone of contention is the "Barnett formula" used to calculate how government spending is divided between the different parts of the U.K., which many English MPs believe unfairly favors Scotland at the moment.
Like Northern Ireland and Wales, Scotland has a separately elected parliament which has devolved power over certain policy areas. The "devo max" offered by the No campaign in the final days of the referendum would grant Scotland even greater powers to run its own affairs, although defense and foreign affairs are likely to continue being governed across the U.K.
While markets breathed a sigh of relief on Friday after the No vote was announced, the political fault lines it exposed have deepened concerns about the U.K. as a safe haven.
"This uncertainty is going to reduce inward investment in the U.K.," Redeker said.
"We may have to live with increased uncertainty on the vote around membership of the European Union…The risk premium in sterling is going to stay high."
- By CNBC's Catherine Boyle