In the long run, if an economy's consumption spending is $5 trillion, its planned investment is $2 trillion, government spending is $1 trillion, net tax revenue is $1 trillion, and household savings are $2 trillion, total output should be

Utility is

A) the consumption of a quasi-public good like electricity or natural gas. B) easily measured in units called utils. C) the production of a quasi-public good like electricity or natural gas. D) subjective and difficult to measure.

Which of the following are barriers to entry?

A. patents and copyrights B. economies of scale C. control of resources D. all of these