It is often remarked that the existence of unions is proof of the inefficiency and failure of markets to pay workers adequate wages. That workers, as a great multitude with little individual influence, must form socialistic collectives in order to provide...
Scarcity can be defined as the ownership of something tangible which necessarily excludes others from using it. Thus, if I own a fork, I exclude others from using it, unless I either give it away or temporarily transfer availability of it to someone else...