Market environments P Are there many other firms or just a few? &Do other firms'decisions affect our firm's payoffs? Is trading anonymous, in a market? Or are trades arranged with separate buyers by middlemen?Market Environments ◆Are there many other firms, or just a few? ◆Do other firms’ decisions affect our firm’s payoffs? ◆Is trading anonymous, in a market? Or are trades arranged with separate buyers by middlemen?