Suppose demand for HP printers is estimated to be Q = 1000 - 5p + 10pX - 2pZ + 0.1Y. If
p = 80, pX = 50, pZ = 150, and Y = 20,000;
a) What is the price elasticity of demand for HP printers?
b) What is the cross-price elasticity with respect to commodity X? Give an example of what commodity X might be.
c) What is the cross-price elasticity with respect to commodity Z? Give an example of what commodity Z might be.
d) What is the income elasticity of demand for HP printers?. Is this good normal or inferior?