Suppose a company where production depends on two inputs: labor and capital, with prices w and r, respectively. Initially, the company faces market values of w=6 and r=4. these prices then shift to w=4 and r=2.
[A] in which direction with the substitution effect change the firm's employment and capital stock?
[B] in which direction will the scale effect change the firm's employment and capital stock?
[C] can we say conclusively whether the firm will use more or less labor? more or less capital?