The Demand for Good X Has Been Estimated to Be

Multiple Choice

The demand for good X has been estimated to be ln Q_x^d = 100 − 2.5 ln P_X + 4 ln P_Y + ln M.The own price elasticity of good X is:

A) −2.5.
B) 4.0.
C) −2.5 percent.
D) 4.0 percent.