The elasticities are given as follows:
Cross price elasticity of X to Y (Exy) = -0.5
Cross price elasticity of X to Z (Exz) = 0.6
Income elasticity of X = -0.5
Which of the following raises the demand for X the most?
a) 1% increase in the price of Y; 1% decrease in income
b) 1% increase in the price of Y; 1% increase in income
c) 1% increase in the price of Z; 1% decrease in income
d) 1% decrease in the price of Y; 1% increase in income