We present an incremental proof of the producer/consumer property for the PCI protocol. In the incremental proof, a corrected model of the multi-bus PCI 2.1 protocol is shown to be a refinement of the producer/consumer property. Multi-bus PCI must be corrected because the original PCI specification violates the producer/consumer property. The final model of PCI includes transaction types and re...

• Welfare effects of taxation and other costs under imperfect competition are analyzed. Formulas for the marginal value public funds incidence provided. Our framework can be readily extended to encompass firm heterogeneity. This paper provides a comprehensive study welfare multiple policy interventions external changes with emphasis on specific ad valorem as leading case. Specifically, in relat...

information filtering We discuss the implications of information consumer and producer needs for the provider of basic filtering technology. To understand the consumer point of view, we outline seven different filtering goals that cover a wide variety of filtering questions, including obtaining an overview, identifying a trend, and finding a match between a prototype and an instantiation. We di...

We study the welfare implications of personalized pricing implemented with machine learning. use data from a randomized controlled field experiment to construct prices and validate these in field. find that unexercised market power increases profit by 55%. Personalization improves expected profits an additional 19% 86% relative nonoptimized price. While total consumer surplus declines under pri...

The demand for electronic books (e-books) and the e-book readers are complementary. On the one hand, the emergence of e-book readers such as Amazon’s Kindle has triggered the recent growth of the e-book market. On the other hand, several issues in the e-book market can affect the future of the e-book reader market. Considering this complementarity, this paper quantifies the impact of digital ri...

The demand for electronic books (e-books) and the e-book readers are complementary. On the one hand, the emergence of e-book readers such as Amazon’s Kindle has triggered the recent growth of the e-book market. On the other hand, several issues in the e-book market can affect the future of the e-book reader market. Considering this complementarity, this paper quantifies the impact of digital ri...