Acompany released a new video game system just in time for christmas and many stores quickly sold out. although the price of the system was only $350, they sold for over $2,000 on an online auction site. which of the following economic principles best explains this event?
people respond to incentives because of self-interest.
the value of some objects increases relative to other objects.
the price of all goods will rise over time.
competition among consumers increases prices.