Ralone Corp. manufactures printers. When it launched a new line of laser printers, it also introduced laser toners. None of the other laser toners in the market were compatible with its laser printers. So, as long as its laser printers are in demand, its laser toners will also be in demand. In this scenario, Ralone Corp.'s laser printers and laser toners are products that exhibit .

Suppose that a candy maker owns a building and is renting part of the building's space to a doctor. further suppose that because the candy maker is the owner, he has the right to make noise during the day while he makes candy. while the doctor cannot insist on a quiet environment, the doctor could move to a quieter building. however, rent in the next best building is $350/month more than rent in the noisy building. the candy maker can adopt a new technology that eliminates the noise for $275/month. given this situation, can the doctor find a private solution with the candy maker that will make both better off?