Section 2 of the Sherman Act of 1890 forbids contracts and conspiracies in restraint of trade. a) True b) False. Question 19 A tying agreement involves _____. a) two companies with similar products merging to increase their market share. b) a seller agreeing to sell a product on condition that the purchaser buys a second product. c) one company purchasing another company with similar products using a hostile takeover. d) a purchaser agreeing to buy a product at a "suggested retail price."