The short run is a time period in which A) some of the firm's resources are fixed. B) all of the firm's resources are fixed. C) all of the firm's resources are variable. D) the firm cannot increase its output. E) all costs become explicit costs.

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?