A publishing company releases a hard-cover version and paper-back version of a book. The hard cover version is priced 50% higher than the paper-back version, although it costs only 20% more to the producer to produce it. What assumption does the company make about the consumers that buy the hard cover as compared to those who buy the paper back? Consumers that buy the hard-cover version have a more price-elastic demand than those that buy the paper-back Consumers that buy the hard-cover version have a less price-elastic (or more price inelastic) demand than those that buy the paper-back Consumers that buy the hard-cover version have the same price-elasticity of demand than those that buy the paper-back Consumers that buy the hard-cover version are not rational consumers