Which type of unemployment does not contribute to the natural rate of unemployment?

Due to a change in the regulatory structure of a small open economy, the desired capital stock becomes higher for both private investment and government investment

Increased government investment spending is financed by borrowing, not by higher taxes. If both desired investment and government spending rise at the same time, will there be "twin deficits"?

A nation can gain from imposing a tariff on imports if it forces exporting countries

a. to raise their prices to pay the tariff. b. to lower their prices to avoid stocks of unsold goods. c. to produce at diseconomies of scale. d. to accept some imports from the tariff-imposing nation.