Which of the following is most likely to be preferred by economists as a relatively more efficient measure to reduce pollution?

Andrew Carnegie dominated the steel industry on the basis of the Bessemer converter. This technology permitted unskilled men to produce large quantities of steel at relatively low costs. This technology was

(a) invented by Carnegie. (b) stolen from the British inventor Bessemer. (c) acquired legally from the British inventor Bessemer. (d) imported from Germany.

Revenue for state and local governments is mainly sourced from: a. personal income taxes

b. sales and property taxes. c. corporate income taxes. d. license fees.