Hey, Maths and Economics are great choices, especially for finance and economics. Politics is a great choice. If your school lets you pick a fourth option, consider Further Maths if you love a challenge—it’ll impress unis for finance or econ. Physics is also solid; it pairs well with Maths and keeps career doors open, but is very hard. Or go for Geography if you want a subject that links to global issues and development in economics. I would recommend doing 4 A-levels, and dropping one for Y13 if your school lets you do that. It is more work but going to Y13 you'll know what you like and are good at.