In self-help systems, power and self interest determine state behavior

If you wanted to measure the well-being of a nation, which of these would be most useful?

a. average age of retirement b. average income c. distribution of income d. gross domestic product

Which of the following technologies first allowed the instantaneous transmission of news over long distances in the mid- to late 19th century?

a. the telegraph b. the telephone c. the Internet d. the Pony Express