ito ay kagandahang asal na nararamdaman o ipinapakita sa pamamagitan ng mataas na pagkilala o pagtingin​

One drawback of voluntary trade is that it a. requires two groups to use a common language b. can make one group dependent upon another for necessary goods c. doesn't occur unless there is a shortage of goods for at least one group d. forces groups to rely on themselves to produce all the goods they need