i am applying to study economics in LSE, UCL and Warrick. If you want to get into the top uni's you definitely have to do maths. I don't take further maths as i don't enjoy maths that much but it is suggested for uni's like LSE. i wouldn't suggest taking economics at a level as the university course and a level course are completely different lol. the university course is mainly maths based. i take for AS, Chemisty, Physics, Maths, Product Design (Easy A) and computing. i am dropping computing and physics and taking on Chemistry, Maths and product design. YOU HAVE TO ACHIEVE AN A IN AS MATHS! if you want to get anywhere successful in the business world (100k upwards) you are going to want to go to one of the top universities i stated previously, specifically LSE. If you qualify from one of these units you are laughing. however all these units require a A in maths minimum. i wouldn't really suggest taking history or geography but something more highly stated like physics or any other science. however definitely choose something you will get an A in. Personally i don't think that an economics degree would be best for you but rather something like law based on the subnets you stated above. unless you are highly money motivated i would think about taking a different course.