Anita owes brad $75,000. brad signs a written statement granting glen a gratuitous assignment of his rights from anita. brad delivers the signed statement to glen before brad dies. the assignment is: a. the delivery of the statement makes the assignment irrevocable. b. the assignment is terminated upon brad's death. c. the signing of the statement makes the assignment irrevocable. d. the assignment is invalid, because it is revocable.

Consider two ways to protect your car from theft. the club (a steering wheel lock) makes it difficult for a car thief to take your car. lojack (a tracking system) makes it easier for the police to catch the car thief who has stolen it. if a car thief encounters a car with the club and a car without it, the car with the club imposes a externality on the car without the club. a policy implication from this result includes a those who use the club.