Chapter 3: Q.2 (page 110)
In prison, cigarettes are sometimes used among inmates as a form of payment. How is it possible for cigarettes to solve the 鈥渄ouble coincidence of wants鈥 problem, even if a prisoner does not smoke?
Short Answer
Smokes satisfy the double coincidence of wants in that both parties to a trade are in need of cigarettes either for consumption or for further trade.