Problem
Many gyms offer a mixed two-part tariff pricing scheme. One can join the gym and then have daily access at a very low cost (often, free); alternatively, one can choose not to join and pay a higher daily fee (perhaps $10 or $15). Explain the rationale for this dual pricing scheme. What must be true of the gym's customers' demands?
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.