In nonlinear models, the expected change in the dependent variable for a change in one of the explanatory variables is given by
A) ?Y = f(X1 + X1, X2,... Xk).
B) ?Y = f(X1 + ?X1, X2 + ?X2,..., Xk+ ?Xk)- f(X1, X2,...Xk).
C) ?Y = f(X1 + ?X1, X2,..., Xk)- f(X1, X2,...Xk).
D) ?Y = f(X1 + X1, X2,..., Xk)- f(X1, X2,...Xk).
Answer: C) ?Y = f(X1 + ?X1, X2,..., Xk)- f(X1, X2,...Xk).
Economics
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