Proceedings of the fourteenth ACM conference on Electronic commerce

The papers in this Proceedings were presented at the 14th ACM Conference on Electronic Commerce (EC'13), held June 16-20 at the University of Pennsylvania in Philadelphia, PA. Since 1999 the ACM Special Interest Group on Electronic Commerce (SIGecom) has sponsored the leading scientific conference on advances in theory, systems, and applications at the interface of economics and computation, including applications to electronic commerce. The papers were selected by the program committee from among 223 submissions received by February 11, 2012. Papers were invited in the following three non-exclusive focus areas: TF: Theory and Foundations AI: Artificial Intelligence and Applied Game Theory EA: Experimental, Empirical, and Applications In addition to the main technical program, EC'13 featured four workshops and five tutorials, a poster session, and keynote talks by Jon Kleinberg (Cornell): Cascading Behavior in Social and Economic Networks Alvin E. Roth (Stanford): Kidney Exchange: Where We've Been and Where We Can Go From Here The call for papers attracted 223 submissions from authors in academia and industry all around the world, 2 of which were retracted. Each of the remaining 221 papers was reviewed by at least three program committee members and two senior program committee members on the basis of scientific novelty, technical quality, and importance to the field. Following the tradition started last year, the authors were asked to align their submission with one or two of the tracks. Papers were reviewed by SPC members and PC members aligned with the track of the submission to make sure we provide a fair review process across different communities. Of the total of 221 submissions 167, 54, and 50 choose the labels TF, AI and EA respectively, with 50 papers choosing dual tracks. After author feedback, and extensive discussion and deliberation among the program committee, senior program committee, and the program chairs, 72 papers were selected for presentation at the conference. Of the 72 selected papers 52, 16 and 16 have labels TF, AI and EA respectively. 49 of the accepted papers are published in these Proceedings. For the remaining 23, at the authors' request, only abstracts are included along with pointers to full working papers that the authors guarantee to be reliable for at least two years. This option accommodates the practices of fields outside of computer science in which conference publishing can preclude journal publishing. We expect that many of the papers in these proceedings will appear in a more polished and complete form in scientific journals in the future. Papers were presented in a mix of plenary and parallel sessions. To emphasize commonalities among the problems studied at EC, and to facilitate interchange at the conference, sessions were organized by topic rather than by focus area, and no indication of a paper's focus area(s) was given at the conference or appears in these proceedings. Papers with high quality and broad appeal were selected for the single session talks. Some of the conference's technically strongest work addressed smaller cross-sections of the community, and so appeared in parallel sessions. We hope that you find this program interesting and thought-provoking and that the conference provides you with a valuable opportunity to share ideas with other researchers from institutions around the world.