Complete the following statements with correct word ( s ) or definition :

--Good whose demand curve slopes upward because the income effect is larger than the substitution effect .

----------- is the extra output obtained by using one more machine while holding the number of workers constant .

combinations of capital and labor and the trade - off between the two .

q=K^ ^ aL^ ^ B; beta <= 1 where 0 sa , iscalled --------- Production function .

The firm's is the set of cost - minimizing input combinations a firm will choose to produce various levels of output ( when the prices of inputs are held constant )