Table Of ContentLecture Notes in Computer Science 5929
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Advanced Research in Computing and Software Science
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GiorgioAusiello,UniversityofRome‘LaSapienza’,Italy
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Stefano Leonardi (Ed.)
Internet
and Network
Economics
5th International Workshop, WINE 2009
Rome, Italy, December 14-18, 2009
Proceedings
1 3
VolumeEditor
StefanoLeonardi
SapienzaUniversityofRome
DepartmentofInformationandSystems
ViaAriosto25,00185Roma,Italy
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andHCI
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Preface
ThisvolumecontainsthepaperspresentedatWINE2009:the5thInternational
Workshop on Internet and Network Economics held December 14–18, 2009, in
Rome,attheDepartmentofComputerandSystemSciences,SapienzaUniversity
of Rome.
Overthe pastdecadetherehasbeengrowinginteractionbetweenresearchers
intheoreticalcomputer science,networkingandsecurity,economics,mathemat-
ics, sociology, and management sciences devoted to the analysis of problems
arising in the Internet and the worldwide web. The Workshop on Internet and
Network Economics (WINE) is an interdisciplinary forum for the exchange of
ideas and results arising in these varied fields.
There were 142 submissions to the workshopincluding regularandshortpa-
pers.Allsubmissionswererigorouslypeerreviewedandevaluatedonthebasisof
thequalityoftheircontribution,originality,soundness,andsignificance.Almost
all submissions were reviewed by at least three Program Committee members.
The committee decided to accept 34 regular papers and 29 short papers. The
Best Student Paper award sponsored by Google Inc. was given to Saeed Alaei
andAzarakhshMalekianforthepaper“AnAnalysisofTroubledAssetsReverse
Auction.”
The programalso included three invited talks by S. Muthukrishnan (Google
Inc.andRutgersUniversity),H.PeytonYoung(OxfordandJohnsHopkinsUni-
versity)andEvaTardos(CornellUnversity).Threetutorialswerealsoofferedon
the days before the workshop, from Andrei Broder (Yahoo! Research) on Com-
putational Advertising, Nikhil Devanur and Kamal Jain (Microsoft Research)
onComputationalIssuesinMarketEquilibria,andTimRoughgarden(Stanford
University) on Bayesian and Worst-Case Revenue Maximization.
We would like to thank Google Inc., Microsoft Research, Yahoo! Research,
Fondazione Ugo Bordoni and Sapienza University of Rome for the generous
financial support to WINE 2009. We would also like to thank the Department
of Computer and System Sciences, Sapienza University of Rome, for hosting
the event. Vincenzo Bonifaci and Piotr Sankowski offered their precious help
for the review process, the conference website and the workshop proceedings.
We also acknowldegeEasychair,a fantastic, robust, easy to use, freely available
system for managing the work of the Program Committee and the production
of workshop proceedings.
October 2009 Stefano Leonardi
Conference Organization
Program Committee Chair
Stefano Leonardi Sapienza University of Rome, Italy
Program Committee
Moshe Babaioff Microsoft Research
Patrick Briest Cornell University, USA
Andrei Broder Yahoo! Research
Shuchi Chawla Wisconsin University, USA
Ning Chen Nanyang TechnologicalUniversity, Singapore
Bruno Codenotti National Research Council, Italy
Artur Czumaj Warwick University, UK
Xiaotie Deng City University of Hong Kong
Amos Fiat Tel-Aviv University, Israel
Michele Flammini L’Aquila University, Italy
Martin Gairing University of California at Berkeley, USA
Arpita Ghosh Yahoo! Research
Nicole Immorlica Northwestern University, USA
Matthew Jackson Stanford University, USA
Kamal Jain Microsoft Research
Ehud Kalai Northwestern University, USA
Piotr Krysta Liverpool University, UK
Ron Lavi The Technion, Israel
Aranyak Mehta Google Inc.
Paul Milgrom Stanford University, USA
S. Muthukrishnan Google Inc. and Rutgers University, USA
Rudolf Mu¨ller Maastricht University, The Netherlands
Tim Roughgarden Stanford University, USA
Guido Schaefer CWI, Amsterdam, The Netherlands
Paul Spirakis CTI, Patras,Greece
Sergei Vassilvitskii Yahoo! Research
Berthold Voecking RWTH Aachen University, The Netherlands
Yinyu Ye Stanford University, USA
Local Organization
Giorgio Ausiello
Vincenzo Bonifaci
Stefano Leonardi (Chair)
Alberto Marchetti-Spaccamela
Piotr Sankowski
VIII Organization
External Reviewers
Abraham, Ittai Lachish, Oded
Augustine, John Lahaie, Sebastien
Aziz, Haris Lambert, Nicolas
Berenbrink, Petra Leyton-Brown, Kevin
Bernstein, Shai Ligett, Katrina
Bilo’, Vittorio Lin, Genie
Bonifaci, Vincenzo Lu, Pinyan
Bouveret, Sylvain Lucier, Brendan
Brenner, Janina Mahini, Hamid
Bu, Tian-Ming Melideo, Giovanna
Buchbinder, Niv Mobius, Markus
Buchbinder, Niv Monaco, Gianpiero
Budinich, Michele Morgan, John
Carlsson, John Moscardelli, Luca
Cavallo, Ruggiero Nadav, Uri
Cesa-Bianchi, Nicolo Ohseto, Shinji
Chen, Ho-Lin Pap, Gyula
Chen, Xi Piliouras, George
Chen, Yiling Procaccia, Ariel
Christodoulou, Giorgos Qi, Qi
Codenotti, Paolo Raecke, Harry
Dai, Decheng Rothe, Joerg
Daskalakis, Costis R¨oglin, Heiko
Delage, Erick Saia, Jared
Dhangwatnotai, Peerapong Salek, Mahyar
Du, Ye Sankowski, Piotr
Dumrauf, Dominic Sauerwald, Thomas
Eberhart, Robert Schapira, Michael
Englert, Matthias Schoppmann, Florian
Fanelli, Angelo Sharma, Aneesh
Feldman, Michal Singer, Yaron
Feldmann, Rainer Slivkins, Aleksandrs
Fortnow, Lance So, Anthony Man-Cho
Fu, Hu Stiller, Sebastian
Garg, Dinesh Sundararajan, Mukund
Goldberg, Paul Telelis, Orestis
Gravin, Nikolai Tscheuschner, Tobias
Guo, Mingyu Vredeveld, Tjark
Harks, Tobias Wang, Zizhuo
Hoefer, Martin Xia, Lirong
Hua, Xia Yu, Changyuan
Huo, Yumei Zhang, Jie
Kanellopoulos, Panagiotis Zhang, Qin
Kintali, Shiva Zhao, Hairong
Table of Contents
Invited Talks
Ad Exchanges:Research Issues .................................... 1
S. Muthukrishnan
Adaptive Learning in Systems of Interacting Agents .................. 13
H. Peyton Young
Quantifying Outcomes in Games (Abstract) ......................... 17
E´va Tardos
Regular Papers
Competitive Routing over Time.................................... 18
Martin Hoefer, Vahab S. Mirrokni, Heiko Ro¨glin, and
Shang-Hua Teng
On 2-Player Randomized Mechanisms for Scheduling ................. 30
Pinyan Lu
On Stackelberg Pricing with Computationally Bounded Consumers..... 42
Patrick Briest, Martin Hoefer, Luciano Guala`, and Carmine Ventre
On Best Response Dynamics in Weighted Congestion Games with
Polynomial Delays ............................................... 55
Angelo Fanelli and Luca Moscardelli
Parametric Packing of Selfish Items and the Subset Sum Algorithm .... 67
Leah Epstein, Elena Kleiman, and Julia´n Mestre
An Online Multi-unit Auction with Improved Competitive Ratio....... 79
Sourav Chakraborty and Nikhil Devanur
Prediction Mechanisms That Do Not Incentivize Undesirable Actions... 89
Peng Shi, Vincent Conitzer, and Mingyu Guo
Pricing Strategies for Viral Marketing on Social Networks............. 101
David Arthur, Rajeev Motwani, Aneesh Sharma, and Ying Xu
Consistent Continuous Trust-Based Recommendation Systems ......... 113
Ola Rozenfeld and Moshe Tennenholtz
X Table of Contents
The Stackelberg Minimum Spanning Tree Game on Planar and
Bounded-Treewidth Graphs ....................................... 125
Jean Cardinal, Erik D. Demaine, Samuel Fiorini, Gwena¨el Joret,
Ilan Newman, and Oren Weimann
Tighter Bounds for Facility Games ................................. 137
Pinyan Lu, Yajun Wang, and Yuan Zhou
Degrees of Guaranteed Envy-Freeness in Finite Bounded Cake-Cutting
Protocols ....................................................... 149
Claudia Lindner and Jo¨rg Rothe
Approximate Pure Nash Equilibria via Lova´sz Local Lemma .......... 160
Th`anh Nguyen and E´va Tardos
Externalities in Keyword Auctions: An Empirical and Theoretical
Assessment...................................................... 172
Renato Gomes, Nicole Immorlica, and Evangelos Markakis
Covering Games: Approximation through Non-cooperation ........... 184
Martin Gairing
Contract Auctions for Sponsored Search ............................ 196
Sharad Goel, S´ebastien Lahaie, and Sergei Vassilvitskii
Bidding for Representative Allocations for Display Advertising......... 208
Arpita Ghosh, Preston McAfee, Kishore Papineni, and
Sergei Vassilvitskii
Social Networks and Stable Matchings in the Job Market ............. 220
Esteban Arcaute and Sergei Vassilvitskii
Maximizing the Minimum Load: The Cost of Selfishness .............. 232
Leah Epstein, Elena Kleiman, and Rob van Stee
Competitive Repeated Allocation without Payments.................. 244
Mingyu Guo, Vincent Conitzer, and Daniel M. Reeves
Pseudonyms in Cost-Sharing Games ............................... 256
Paolo Penna, Florian Schoppmann, Riccardo Silvestri, and
Peter Widmayer
Computing Optimal Contracts in Series-Parallel Heterogeneous
Combinatorial Agencies........................................... 268
Yuval Emek and Michal Feldman
Nash Equilibria for Voronoi Games on Transitive Graphs ............. 280
Rainer Feldmann, Marios Mavronicolas, and Burkhard Monien
Table of Contents XI
Selfish Scheduling with Setup Times................................ 292
Laurent Gourv`es, J´eroˆme Monnot, and Orestis A. Telelis
Computational Aspects of Multimarket Price Wars................... 304
Nithum Thain and Adrian Vetta
The Impact of Social Ignorance on Weighted Congestion Games ....... 316
Dimitris Fotakis, Vasilis Gkatzelis, Alexis C. Kaporis, and
Paul G. Spirakis
The Complexity of Models of International Trade .................... 328
Christopher A. Wilkens
The Geometry of Truthfulness ..................................... 340
Angelina Vidali
Optimal Incentives for Participation with Type-Dependent
Externalities .................................................... 351
Michal Feldman, Ran Tessler, and Yoav Wilf
Nash Dynamics in Congestion Games with Similar Resources.......... 362
Anand Bhalgat, Tanmoy Chakraborty, and Sanjeev Khanna
Online Ad Assignment with Free Disposal........................... 374
Jon Feldman, Nitish Korula, Vahab Mirrokni,
S. Muthukrishnan, and Martin Pa´l
Truthful and Quality Conscious Query Incentive Networks ............ 386
Devansh Dikshit and Narahari Yadati
An Analysis of Troubled Assets Reverse Auction ..................... 398
Saeed Alaei and Azarakhsh Malekian
Direction Preserving Zero Point Computing and Applications:
(Extended Abstract) ............................................. 410
Xiaotie Deng, Qi Qi, and Jie Zhang
Short Papers
Continuity Properties of Equilibria in Some Fisher and Arrow-Debreu
Market Models .................................................. 422
Vijay V. Vazirani and Lei Wang
Route Distribution Incentives...................................... 430
Joud Khoury, Chaouki T. Abdallah, Kate Krause, and
Jorge Crichigno
Wiretapping a Hidden Network.................................... 438
Haris Aziz, Oded Lachish, Mike Paterson, and Rahul Savani
