Which type of unemployment arises when changes in technology or international competition change the skills needed to perform jobs or change the location of jobs?

Which of the following is a feature of a good theory?

A) A good theory does not rely on data. B) A good theory cannot be tested with data. C) A good theory is free from approximations. D) A good theory closely predicts actual behavior.

When a foreign firm sells its exports at a lower price than its cost of production, the firm is

A) imposing an economies of scale cost. B) dumping. C) avoiding a tariff. D) competing in an infant industry.