In a logistic regression using SAS PROC QLIM, I have an independent variable, the natural log of annual earnings.   The average marginal effect on the dependent variable of this independent variable = -0.0204.   EXP(-.0204) = 0.9798 AND (1-0.9798) = 0.0202.   Does this mean that a 1.0 percent increase in log earnings reduces the probability of the event by 2.02 percent?   Or is the marginal effect interpreted differently?   Thanks.     ... View more