We study observational learning in environments where customers choose among multiple options with uncertain quality for which they observe the aggregate choices of previous customers (the sales of each option). When customers have heterogeneous knowledge about quality, the choices of better...

We depart from the classic bundling literature on single-unit purchases and develop a multi-unit demand model in which customers decide both the variety and volume of their purchased products. We integrate product bundling with two commonly used usage-based pricing schemes in the service...

Problem definition: We consider a monopolist firm selling products to strategic customers who may purchase more than one unit of the product. A key feature of multi-unit purchases is that customers do not value the additional purchases as highly as the first unit, implying the results of...