An increase in the price of the firm's output leads to a movement up along the demand for labor curve. movement down along the demand for labor curve. rightward shift of the demand for labor curve. leftward shift of the demand for labor curve. Question 49 2 pts The income distribution in the United States has become more equal between 1968 and 2008. become less equal between 1968 and 2008. not changed its degree of inequality between 1968 and 2008. changed so that the distribution in 1968 is no longer comparable to that in 2008