Economics is a well respected academic subject, so yes, some will find it hard. Having said that if you enjoy the subject and can cope with the Maths then it may well be the subject for you, and the financial rewards can be considerable. The first year will be a lot easier, but not impossible, if you have Economics a level and at least AS Maths, Just to let you know I am a specialist teacher of A level Economics, and have a son who has recently finished a degree and started work at one of the top four accountancy firm with a salary not far off my own.