Selling and Leasing Software with Network Externality

Previous studies suggested that a monopoly durable goods seller can use leasing to effectively avoid the time-inconsistent problem raised by Coase Conjecture. This paper extends those previous works by examining the monopoly seller’s selling and leasing strategy for a special type of durable good --- software. We look at a software vendor that can sell (at a posted price) or lease his product where as a lesser he guarantees that the lessees will always have the latest version of the software. We address some of the specific issues of implementing the selling and/or leasing policies at the packaged software market, including the impact of network externality, upgrade compatibility, and commitment on pricing in a dynamic environment. We show that by properly defining their pricing structure, software vendors can segment the market and second-degree price discriminate the consumers. We also demonstrate how software vendors can manage the trade-offs of selling and leasing to achieve a higher profit as well as the corresponding welfare effect on the consumers.