According to the law of demand, the quantity demanded for a reward is dependent upon the price; as the price of the reward increases, the quantity demanded decreases (1). Conversely, when the price decreases, the quantity demanded increases. This relationship can be observed at any local bar during "happy hour,"...
http://ift.tt/2zxZKOn
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου