A problem facing the timber industry is the absence of any effective way to prove that rain forest timber was legally harvested. In places like Indonesia as much as 80 percent of timber available for sale was illegally cut. Companies like The Home Depot do not want to sell timber from illegally logged forests even though the demand is great for timber from rain forests. Which of the following conditions required for an exchange to occur is missing when a company tries to sell illegally acquired logs to The Home Depot?