Q1) Demand curve for product is given by Qdx = 1,000 - 2Px + .02Pz, where Pz = $400.
1. Find out pen to firm's revenue if it decided to charge price below $154?
2. Compute the own price elasticity of demand when Px = $354? Is demand elastic or inelastic at this price? What would occur to firm's revenue if it decided to charge a price above $354?
3. Determine cross-price elasticity of demand between good X and good Z when Px = $154? Are goods X and Z substitutes or complements?