In recent times, there has been a decline in the sale of newspapers in the U.S. as people prefer to read the news on the internet. This has caused many newspaper journalists to lose their jobs. This is an example of:
a. structural unemployment.
b. frictional unemployment.
c. cyclical unemployment

Using a common resource:

A. creates a positive externality for others. B. maximizes total surplus. C. imposes a negative externality on others. D. is an irrational decision.

The New York Stock Exchange (NYSE) originated as:

A. a decentralized electronic market made up of dealers all over the world. B. a financial market where nearly 100 million shares of stock are traded every business day. C. the only centralized stock exchange in the world. D. an example of a centralized exchange.