Answer:
Solo exchange.
Explanation:
Solo exchange is a type of market exchange where there is a short time horizon for the customer-salesperson relation or interaction. This exchange is conflicting in nature, involving a bargain system.
It involves no bonds or any interest in the other party. Consisting of a simple transaction, this short term interaction involves the parties caring about their interests. So, when Adam bought the items from a small store that will never be revisited constitutes a form of solo transaction.
