The Economic Way of Thinking 13th Edition by David Prychitko, Peter Boettke, Paul Heyne

تمرين 1

Serena Dippity has all the luck. She woke up this morning to find an ounce of gold under her pillow, which greatly pleased her. Because she didn't incur any sacrifice, the gold is a free good for Serena. Later that day she learns that the gold is worth $1,800, which she can sell if she wishes. If she chooses to continue to own the gold, rather than sell it, does the gold remain a free good for Serena?