Problem
The price elasticity of demand for air travel differs radically from first-class (-1.3) to unrestricted coach (-1.4) to restricted discount coach (-1.9). What do these elasticities mean for optimal prices (fares) on a cross-country trip with incremental variable costs (marginal costs) equal to $120.
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.