Who noted that "censorship in free societies is necessarily more complex and calculated than in dictatorships"?

The problem of someone driving a benefit from the actions of others is known as the

A) Collective good distribution. B) Free rider problem. C) Collective good effect. D) Limited interest effect. E) Umbrella problem.

As early as the third century B.C., various nomadic groups and Chinese merchants established a trading route, known as the _____________________

Fill in the blank with correct word