In the figure above, if information technologies are introduced that are complements for high-skilled workers and substitutes for low-skilled workers, the wage rate of high-skilled workers will ________ and the wage rate of low-skilled workers will

On the foreign exchange market, an increase in a country's exchange rate

A) decreases the demand for its currency and shifts the demand curve rightward. B) increases the quantity demanded of its currency and leads to a movement up along the demand curve. C) decreases the quantity demanded of its currency and leads to a movement up along the demand curve. D) decreases the demand for its currency and shifts the demand curve leftward. E) increases the quantity demanded of its currency and leads to a movement down along the demand curve.

The informal sector is characterized by

a. firms that don't pay their taxes b. firms from other countries that are not subject to local laws c. firms producing illegal goods d. firms that are small and often able to avoid many government regulations e. all of the above