ABSTRACT
Consider what general lesson one might learn from these two examples:
In 1980, the US refused to sell grain to the Soviet Union if the Soviet Union did not withdraw its troops from Afghanistan. The Soviet Union paid a higher price to buy grain from Argentina and did not withdraw from Afghanistan.
In 1983, Australia refused to sell uranium to France, unless France ceased nuclear testing in the South Pacific. France paid a higher price to buy uranium from South Africa and continued nuclear testing.
