DAF YOMI BABA METZIA DAF 65 Choshen Mishpat Through the Lens of The Daf Yomi- PREPAYMENT DISCOUNTS

Q:Is their ribis when you subscribe to a newspaper and get a cheaper price then in stores

A:Rabbi Marburger says in his book Business Halachah that if an item is in stock at the time of payment so therefore their is no ribis so assuming that the newspaper is in stock at the time of payment their is no ribis