If an industry has 25 firms that collectively have $150 million in total sales and the top three firms in this industry account for $78 million in sales and the fifth through twenty-fifth firms account for $60 million in sales, what is the amount of

Which of the following is true of the European Currency Unit?

a. It was used by the European nations as a medium of exchanging goods and services. b. It was an accounting entry that was transferred between two European nations. c. It was replaced by the euro in the early 1980s. d. It was denominated in the British pound. e. It was a primary international reserve asset of most of the nations across the world.

That part of national income not spent on consumption is defined as

a. transitory income b. permanent income c. disposable income d. autonomous consumption e. saving