Once upon a time in a village, a man appeared and announced to the villagers
that he would buy monkeys for $10 each...
The villagers, seeing that there were many monkeys around, went out to the
forest and started catching them.
The man bought thousands at $10 and as supply started to diminish, the
villagers stopped their effort. He further announced that he would now buy
at $20. This renewed the efforts of the villagers and they started catching
Soon the supply diminished even further and people started going back to
their farms. The offer increased to $25 each and the supply of monkeys
became so little that it was an effort to even see a monkey, let alone catch
The man now announced that he would buy monkeys at $50! However, since he
had to go to the city on some business, his assistant would now buy on
behalf of him.
In the absence of the man, the assistant told the villagers; "Look at all
these monkeys in the big cage that the man has collected. I will sell them
to you at $35 and when the man returns from the city, you can sell them to
him for $50 each."
The villagers rounded up with all their savings and bought all the monkeys.