entex discovers that both firms buy components for the consoles from the same supplier. this supplier sells many parts to entex. to hal, it sells just one critical component, but it is the only supplier because it owns the patent on it. entex approaches hal and offers to charge the high price if hal will as well. but if hal breaks the agreement, entex will tell its supplier that it will pay more for its parts if the supplier completely stops selling to hal. hal knows from its market research that there is a price entex could pay that would make it worthwhile to the supplier and that this would drive hal out of the market. entex would capture the market but make a significantly smaller profit. assume there is no government regulation preventing this behaviour. entex's offer is an example of