While trade restrictions for a small country do provide gains to certain segments in the economy, in a second-best world such restrictions will always lower national welfare for a small country.

In the circular flow of income

A) households demand goods and services that are supplied by firms, and the firms demand factors that are supplied by intermediate firms. B) households demand goods and services that are supplied by firms, while supplying factors that are demanded by firms. C) households sell goods and services while firms sell factors. D) households buy goods and services while firms sell goods and services. Firms obtain labor from households, capital from government, and raw materials from other firms.

The unemployment rate equals the number of unemployed divided by the ________, all times 100

A) labor force B) total population C) number of employed D) working-age population