It influences monetary policy. Not economic policy. In general terms which are probably not satisfying to Economists this means two things - printing more money, or changing interest rates. Neither of these are important for Scotland if sterling remains healthy and they are not in an economic crisis. It's in times of crisis that it becomes problematic as you lose the ability to manipulate the value of your own currency (see: Eurozone crisis or economic crises in countries which had themselves pegged to the US dollar).
It influences monetary policy. Not economic policy. In general terms which are probably not satisfying to Economists this means two things - printing more money, or changing interest rates. Neither of these are important for Scotland if sterling remains healthy and they are not in an economic crisis. It's in times of crisis that it becomes problematic as you lose the ability to manipulate the value of your own currency (see: Eurozone crisis or economic crises in countries which had themselves pegged to the US dollar).