If the MPC is 0.9, then an increase in taxes of $100 can be expected to __________ consumption by the amount of __________

An ethanol producer purchases 10 futures contract of corn for delivery in December for a price of $4/bushel.What is the total gain or total loss to the ethanol producer if the price then increases to $5/bushel?

A. Total gain of $250,000. B. Total loss of $50,000. C. Total gain of $50,000. D. Total loss of $200,000.

Often you will hear students say that a college degree is nothing more than a piece of paper

They argue that there are many successful people who don't go to college that are managing large corporations or otherwise have fulfilling and rewarding careers. Given that this is true does this undermine the usefulness of a college degree as a signaling device?