Assume a diagram in which employment is measured on the vertical axis, and real wage is measured on the horizontal axis. Which of the following questions about the labour supply and wage setting curves are correct? Question 3 options: For any real wage, the wage setting curve shows the amount of labour that will be supplied. Where the wage-setting and labour supply curves intersect, all unemployment is voluntary. If the income and substitution effects of an increase in the wage exactly offset each other, the labour supply curve is vertical. None of these are true