Scenario 16-2 Delish, a moderately priced restaurant, has recently announced intentions to open a restaurant in Boston, MA. Assume that the restaurant market in Boston is characterized by monopolistic competition. Refer to Scenario 17-2. As a result of the new restaurant, existing restaurant owners in Boston are likely to experience a a. product-variety externality, which is a negative externality. b. product-variety externality, which is a positive externality. c. business-stealing externality, which is a positive externality. d. business-stealing externality, which is a negative externality