D Question 40 2.5 pts If Joan Harris is given a 10% increase in her per-hour wage, and in response, she decides to work fewer hours, then: ( Joan's labor supply curve is horizontal the income effect is dominating the substitution effect. O Joan's labor supply curve is upward sloping. the substitution effect is dominating the income effectQuestion 39 2.5 pts As discussed in lecture, which statements are TRUE regarding jobs of the past compared to the jobs of the present in the United States? I. There has been a shift of labor from manufacturing industries to technology and service-based industries. Il. Industries that require a large amount of capital have been outsourced from the United States because of international trade and investment. Ill. The Internet has made labor needs more flexible, meaning firms do not have to hire as many workers as before Oil and lil only. O I and Il only. O I and ill only. OI, ll, and Ill