If the marginal tax rate is equal to the average tax rate as taxable income increases, the tax structure is

If you are participating in an open outcry English auction, you will win if ________

A) you place a bid before the other bidders B) you place the highest bid C) you pay a fee to place a bid D) you place the second-highest bid

Suppose that when the price of pickles decreases, Teddy increases his purchase of ketchup. To Teddy,

A) pickles and ketchup and substitutes. B) pickles and ketchup are normal goods. C) pickles and ketchup are complements. D) pickles are a normal good and ketchup is an inferior good.