Degree in economics or accountingWatch
Which universities are you aiming for?
They're very different academic subjects and besides using numeracy, there's very little overlap between being an accountant and an economist in practice. So being motivated by money is a bit silly, you could hate one and love the other for a relatively small difference in pay.
Whether you earn more as an economist or accountant in the UK is going to depend on where you work. Some firms pay their accountants more than e.g. the Civil Service pay their economists. Some econ consultancies or econ roles at consulting firms will pay their economists more than the Big 4 pay their accountants.
I'm Charlie, one of Lancaster University's student ambassadors. I'm currently in my second year of a degree in Finance & Economics.
I think with any profession, your pay will depend upon many factors. Who are you going to work for? Where are you working? What level do you want to reach? Freelance? Self employed? How many hours are you wiling to put in? Will you undertake additional training? So it's really hard to give a full answer.
I am guessing however, that your question is to do with picking your degree. In which case I would suggest taking a dual hons like myself. My degree consists of 50% accounting and finance modules alongside 50% economics modules. I really enjoy my degree and find that all of my modules go well together even though they are technically different subjects.
I hope this has helped you make your decision!