a) Why are coal miners in China paid higher than factory workers even though they have received more or less the same level of education and training?

b) Why are workers with good looks paid higher in some jobs, but not in others?

c) A recent report released by the Census and Statistics Department indicates that male workers in USA, on average, earn more than female workers and the gap of wage differential is widening. Is this evidence of sex discrimination? Justify your answer

d) There are, on average, 150 new migrants entering USA from the mainland China every day. Use a diagram to explain how this affects the equilibrium wage and quantity of labour in USA.

e) Substantial foreign capital has been flowing into mainland China since the early 1980s. How has this affected the wages and workers employed in China? Explain with a diagram