In recent years, many new and interesting business models for Internet-based selling have emerged with the advent of electronic commerce, one of which is the Internet-based group-buying. Since group-buying can be quickly built and removed, and the consumers can pay a lower price for the product...

We develop a model of pricing and advertising for e-commerce. N identical sellers, selling an homogeneous product, each choose a price and a web-based advertising policy. Buyers have usual demand functions and search optimally on the Internet. A Symmetric Nash Equilibrium (SNE) is derived and...

Recent market structure reviews have shown a shift of retailing power from manufacturers to retailers. Retailers have equal or even greater power than a manufacturer when it comes to retailing. Based on this new market phenomenon, we intend to explore the role of vertical cooperative (co-op)...