Graphs of E(var,fix)-E(fix,fix) for Small Values of V

For V=0.1 and 0.01:

Note that even at lower values of V and higher magnification, the difference between E(var,fix) and E(fix,fix) is always positive. Again, this can be shown far more convincingly with a little bit o' calculus (press here if you wish to view the differentiation of eq 20).