The responsibility of sellers to enact ethical advertising of their products is equal to, if not greater than that of the careful consumer.
What special ethical concerns arise as the distinction between company owners and customers is blurred by equity investment?
Where a monopoly offers a clear benefit to consumers, Jewish tradition does sanction them on a closely regulated basis.
The laws that govern commerce aim to prevent the unscrupulous transfer of property or money from its rightful possessor to another person.
Customers share in the responsibility for ensuring that transactions are fair, and should be upfront about their intentions as consumers.
The Mishnah defines the fair price of an item, such that the seller earn a fair price, while not defrauding the buyer.
The Talmud sets a limited precedent for free market competition by balancing the rights of merchants with the interests of consumers.