Economic Profit? MVA? Economic Income?

Does anyone have a good way of keeping these straight? Specifically, I am very confused on Economic Income:

I have EI = A-T OCF minus change in mkt val

EP = NOPAT - $WACC

MVA is NPV based on EP???

MVA is probably the most straightforward one. It’s the difference between total market value and book value of debt and equity.