Analyze how prescription drugs affect the demand and supply of other products and services in this country. Formulate a reason why the elasticity of demand is an important consideration when analyzing the impact of a shift in supply and why the elasticity of supply is an important consideration when analyzing the impact of a shift in demand. Include at least one (1) example in each scenario. Provide two (2) examples of increasing-cost industries in your state and propose why they would have a positively sloped supply curve. Suggest how, under certain conditions, a perfectly competitive market is economically efficient.