This study considers a supply chain consisting of a supplier and an e-tailer on the internet. The e-tailer replenishes products from the supplier for private inventory and sends drop shipping requests to him for delivering orders to customers when private inventory is insufficient or stock out,...

Content digitalization brings products with homogeneous content but in different formats (digital format and physical format) together. Recently retailers in the online book industry started bundling programs such as Amazon Matchbook, giving print book buyers a free or deeply discounted e-book...