The above figure shows the market for neckties after the government has imposed a tax. How much government revenue is generated by the tax?

Everything else held constant, a decrease in net exports ________ aggregate ________

A) increases; demand B) decreases; demand C) decreases; supply D) increases; supply

Mergers often increase profit by

A) producing economies of scale. B) producing economies of scope. C) increasing efficiency of the firm. D) All of the above.