two opposing effects on upstream merger incentives: first a standard double mark-up problem and second a bargaining effect …. The former creates merger incentives while the later induce suppliers to bargain separately. When buyer power becomes …-stop shopping is pronounced. -- One-stop shopping ; buyer power ; supplier merger …

which lead to two opposing effects on upstream merger incentives: rst a standard double mark-up problem and second a … bargaining e¤ect. The former creates merger incentives while the later induces suppliers to bargain separately. When buyer power …