Which of the following is a bank liability?

Refer to above figure. In the absence of trade, what is the country's producer surplus?

What will be an ideal response?

By itself, the substitution effect of an increase in the wage rate will

a. always lead to an increase in the quantity of labor supplied b. always lead to a decrease in the quantity of labor supplied c. lead to an increase in the quantity of labor supplied only if leisure is like a normal good d. lead to an increase in the quantity of labor supplied only if leisure is not a normal good e. lead to an increase in the quantity of labor supplied only if the income effect works in the same direction