In my MBA,
Finance & Economics - Microeconomics, Macroeconomics, Financial Markets, Economic Environment & Policymaking, Industrial Economics, Futures Options & Risk Management, Asset Backed Securities, Trading Strategies, Capital Market Theory, International Finance
Maths - Probability & Statistics
In my engineering
Finance & Economics - 2 introductory courses each in Economics & Finance
Maths - Ordinary & Partial Differential Equations, Transform Calculus, Integral Calculus, Differential Calculus, Complex / Vector etc.
Took economics in high school as well
Recommendations
My mentor prof from engineering would give a good recommendation. I planned to get the other recommendations from my reporting managers. Expect a good reco from them. Lastly, am thinking of doing a short internship with a professor from my MBA college. Hope to get a reco from him.