If income doubles and the quantity demanded of good x more than doubles, then good x can be described as a:

Data on wages, education, and many other characteristics of the population that are available to anyone who wants to use it are called:

A) private-use data. B) public-use data. C) primary data. D) secondary data.

Which of the following is not an indicator that is used by the World Bank in measuring the level of economic development?

a. life expectancy at birth. b. adult literacy rate. c. infant mortality rate. d. all of the above are not used by the World Bank.