Reprinted with permission from Louis Jacobs, The Jewish Religion: A Companion, published by Oxford University Press.
Jewish law accepts the principle that commercial activities are, in the nature of the case, competitive, but draws the line between fair and unfair competition. The key biblical texts is: “Thou shalt not remove they neighbor’s landmarks” (Deuteronomy 19:14). In the context this refers to a man moving the marker between his and his neighbor’s field so that he takes to himself some of his neighbor’s land. In rabbinic law this is applied to every attempt to encroach, unfairly, on a neighbor’s property or his means of earning a living. The operative word here is “unfair,” and the sources discuss at length how this is to be defined.
Fairness to Businessmen or Customers?
The Mishnah (Bava Metzia 4:11) records a debate between the second-century Palestinian Rabbi Judah and the sages on whether a shopkeeper is allowed to distribute burnt ears of corn and nuts to children who are sent by their parents to buy provisions. Rabbi Judah considers this to be unfair to the other shopkeepers in that it encourages the children to buy from his and not from them. The sages disagree. There is nothing wrong in this practice since the other shopkeepers can themselves compete by providing the children with even better goodies.
Rabbi Judah also holds that it is forbidden for a shopkeeper to sell his goods below the standard market price but the sages say “Good for him” (literally, “May he be blessed”). Clearly, the debate revolves around the question of whose interests the law should seek to preserve, those of the traders or those of the general public. The law, as recorded in the [medieval] Codes [of Jewish law], follows the opinion of the sages. Economic conditions in second-century Palestine were different from those which obtain today, but it is not difficult to see how the debate can have some relevance even in our different form of society to the question of price controls and, say, issuing gift vouchers to customers.
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