Yong Tan
Michael G. Foster Endowed Professor of Information Systems

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Research Interests

• Fintech
• Data and algorithm pricing
• Sharing economy
• Social media and user generated content
• Microcharity
• Online opinion formation
• Health IT
• Economic and social networks (A tutorial given at the INFORMS Annual Meeting, Seattle, November 7, 2007)
• Open source software development
• Peer-to-peer network
• Digital content distribution channels
• Economics of Internet interconnectivity
• Online trust management
• Pricing of Internet services

Publications

• "Flow of the Game: A Hidden Markov Model of Player Engagement in Online Mobile Games," with J. Deng and S. Lee, Information Systems Research, forthcoming.
• "Tapping into User Effort? Improving Referral Outcomes in Crowdfunding Markets," with Y. Jiang and X. Chen, Production And Operations Management, forthcoming.
• "Investor Learning in Crowdfunded Supply Chain Finance Markets," with Z. Zhou, M. Zhang, S. Xiao, and Y.-C. Ho, Production and Operations Management, forthcoming.
• "Toward a Fairness-Aware Scoring System for Algorithmic Decision-Making," with Y. Yang, Y. Wu, X. Chang, and M. Li, Production and Operations Management, forthcoming.
• "To Partner or Not to Partner? The Partnership Between Platforms and Data Brokers in Two-sided Markets," with X. Zhang, L. Cheng, and Y. Yu, Information Systems Research, forthcoming.
• "Does Virtual Reality Help Property Sales? Empirical Evidence from a Real Estate Platform," with Z. Yan and Z. Meng, Information Systems Research, forthcoming.
• "Understanding Lenders' Investment Behavior in Online Peer-to-Peer Lending: A Construal Level Theory Perspective," with Y. Wu, W. Ke. Y, Li, and Z. Lin, Information Systems Research, forthcoming.
• "Understanding Volunteer Crowdsourcing from a Multiplex Perspective," with Y. Yu and J.X. Tan, Information Systems Research, forthcoming.
• "Are Neighbors Alike? A Semi-supervised Probabilistic Ensemble for Online Review Spammers Detection," with Z. Wu, G. Liu, and J. Wu, Information Systems Research, forthcoming.
• "Effects of Scarcity-Induced Demand on Crowdfunding Market," with Z. Zhou, Y. Liu, and C. Ma, Production and Operations Management, forthcoming.
• "Social trading, communication, and networks," with J. Deng, M. Yang, and M. Pelster, Information Systems Research, forthcoming.
• "Does Help Help? An Empirical Analysis of Social Desirability Bias in Ratings," with J. Zheng, G. Yin, and J. Ding, Information Systems Research 35(3) 1052-1073, 2024.
• "When Images Backfire: The Effect of Customer-Generated Images on Product Rating Dynamics," with Y. Guan, Q. Wei, and G. Chen, Information Systems Research 34(4) 1641-1663, 2023.
• "Spoiled for Choice? Personalized Recommendation for Healthcare Decisions: A Multi-Armed Bandit Approach," with T. Zhou, Y. Wang, and L. Yan, Information Systems Research 34(4) 1493-1512, 2023.
• "Value of Information Sharing via Ride-hailing Apps: An Empirical Analysis," with K. Rhee, J. Zheng, and Y. Wang, Information Systems Research 34(3) 1228-1244, 2023.
• "Platform Refund Insurance or Being Cast Out: Quantifying the Signaling Effect of Refund Options in the Online Service Marketplace," with J. Zheng and Y. Wang, Information Systems Research 34(3) 910-934, 2023.
• "Provision of Helpful Review Videos: Effects of Video Characteristics on Perceived Helpfulness," with K. Park, S. Lee, and S. Doosti, Production and Operations Management 32(7) 2031-2048, 2023.
• "Actions Speak Louder than Words: Imputing Users' Reputation from Transaction History," with H. Ghasemkhani, A. Tripathi, and J. Deng, Production and Operations Management 32(4) 1096-1111, 2023.
• "Know Your Firm and Manage Social Media Engagement: Impact on Firm Sales Performance," with F. Ren and F. Wan, Management Information Systems Quarterly 47(1) 227-262, 2023.
• "Unifying Algorithmic and Theoretical Perspectives: Emotions in Online Reviews and Sales," with Y. Yu, Y. Yang, and J. Huang, Management Information Systems Quarterly 47(1) 127-160, 2023.
• "Managing Contributor Performance in Knowledge-Sharing Communities: A Dynamic Perspective," with Y. Jin and J. Huang, Production and Operations Management 31(11) 3945-3962, 2022.
• "Microblogging Replies and Opinion Polarization: A Natural Experiment," with Y. Lu, J. Wu, and J. Chen, Management Information Systems Quarterly 46(4) 1901-1936, 2022.
• "How Is Mobile User Behavior Different? A Hidden Markov Model of Cross Mobile Application Usage Dynamics," with S. Wu, Y. Chen, and Y. Liang, Information Systems Research 33(3) 1002-1022, 2022.
• "Gamified Challenges in Online Weight-loss Communities," with B.G. Bojd, X. Song, and X. Yan, Information Systems Research 33(2) 718-736, 2022.
• "Delivering Healthcare through Teleconsultations: Implication on Offline Healthcare Disparity," with E. Hwang, X. Guo, and Y. Dang, Information Systems Research 33(2) 515-539, 2022.
• "Turn Your Online Engagement in Chronic Disease Management from Zero to Hero: A Multi-Dimensional Continuous-Time Evaluation," with T. Zhou, L. Yan, and Y. Wang, Management Science 68(5) 3507-3527, 2022.
• "Competitive Entry of Information Goods under Quality Uncertainty," with Z. Zhang, G. Nan, and M. Li, Management Science 68(4) 2869-2888, 2022.
• "What's in a "Username"? Examining the Effect of Perceived Anonymity on Herding in Online Crowdfunding," with Y. Jiang, Y.-C. Ho, and X. Yan, Information Systems Research 33(1) 1-17, 2022.
• "The Signaling Effect of Sampling Size in Online Physical Goods Sampling," with Z. Liu, Z. Lin, and Y. Zhang, Production and Operations Management 31(2) 529-546, 2022.
• "Learning to be Creative: A Mutually Exciting Spatial Point Process Model for Idea Generation in Open Innovation," with V. Aggarwal and E. Hwang, Information Systems Research 32(4) 1214-1235, 2021.
• "Competition and Distortion: A Theory of Information Bias on the Peer-to-Peer Lending Market," with Z. Wu, L. Hu, and Z. Lin, Information Systems Research 32(4) 1140-1154, 2021.
• "Show Me the Money: The Economic Impact of Membership Free Shipping Programs on Online Retailers," with Z. Fang, Y.-C. Ho, and J.X. Tan, Information Systems Research 32(4) 1115-1127, 2021.
• "Discount Schemes for the Preemptible Service of a Cloud Platform with Unutilized Capacity," with S. Chen and K. Moinzadeh, Information Systems Research 32(3) 967-986, 2021.
• "Freemium Pricing in Digital Games with Virtual Currency," with Z. Meng and L. Hao, Information Systems Research 32(2) 481-496, 2021.
• "An Empirical Study of the Dynamic and Differential Effects of Prefunding," with X. Wei, W. You, and M. Fan, Production and Operations Management 30(5) 1331-1349, 2021.
• "The Impact of Subscription Reciprocity on Charitable Content Generation and Sharing: Evidence from Twitter on Giving Tuesday," with J.X. Tan and Y. Lu, Management Information Systems Quarterly 45(2) 535-562, 2021.
• "Switching Decision, Timing, and App Performance: An Empirical Analysis of Mobile App Developers' Switching Behavior between Monetization Strategies," with Y.J. Lee, K. Xie, and H. Ghasemkhani, Journal of Business Research 127 332-345, 2021.
• "Cloud Service vs. On-Premises Software: Competition under Security Risk and Product Customization," with Z. Zhang and G. Nan, Information Systems Research 31(3) 848-864, 2020.
• "When Online Lending Meets Real Estate: Examining Investment Decisions in Lending-Based Real-Estate Crowdfunding," with Y. Jiang, Y.-C. Ho, and X. Yan, Information Systems Research 31(3) 715-730, 2020.
• "Optimizing Two-Sided Promotion for Transportation Network Companies: A Structural Model with Conditional Bayesian Learning," with J. Zheng, F. Ren, and X. Chen, Information Systems Research 31(3) 692-714, 2020.
• "An Empirical Analysis of Seller Advertising Strategies in an Online Marketplace," with H. Sun and M. Fan, Information Systems Research 31(1) 37-56, 2020.
• "Exploring Correlation Network for Cheating Detection," with P. Luo, K. Shu, J. Wu, and L. Wan, ACM Transactions on Intelligent Systems and Technology 11(1) Article 12, January 2020.
• "How Mega is the Mega? Exploring the Spillover Effects of WeChat using Graphical Model," with J. Zheng, Z. Qi, and Y. Dou, Information Systems Research 30(4) 1343-1362, 2019.
• "Impact of Live Chat on Purchase in Electronic Markets: The Moderating Role of Information Cues," with J.X. Tan and Y. Wang, Information Systems Research 30(4) 1248-1271, 2019.
• "Structural Econometric Models," with Y. Huang and S. Lee, TutORials in Operations Research 17-43, 2019.
• "An Empirical Study of Free Product Sampling and Rating Bias," with Z. Lin and Y. Zhang, Information Systems Research 30(1) 260-275, 2019.
• "Using User- and Marketer-Generated Content for Box-Office Revenue Prediction: Differences between Micro-Blogging and Third-Party Platforms," with T. Song, J. Huang, and Y. Yu, Information Systems Research 30(1) 191-203, 2019.
• "Who Wants Consumers To Be Informed? Facilitating Information Disclosure in a Distribution Channel," with L. Hao, Information Systems Research 30(1) 34-49, 2019.
• "Shared Minds: How Patients Use Collaborative Information Sharing via Social Media Platforms," with L. Yan, X. Yan, and S.X. Sun, Production and Operations Management 28(1) 9-26, 2019. (Lead Article)
• "Contracting Models for P2P Content Distribution," with H. Ghasemkhani, Y.-M. Li, and K. Moinzadeh, Production and Operations Management 27(11) 1940-1959, 2018.
• "Beyond solving the last mile problem: the substitution effects of bike-sharing on a ride-sharing platform," with J. Qin, S. Lee, and X. Yan, Journal of Business Analytics 1(1) 13-28, 2018.
• "Big data would not lie: prediction of the 2016 Taiwan election via online heterogeneous information," with Z. Xie, G. Liu, and J. Wu, EPJ Data Science 7:32, 2018.
• "Online Group Influence and Digital Product Consumption," with J. Mu, E. Thomas, and J. Qi, Journal of the Academy of Marketing Science 46 921-947, 2018.
• "Investors Platform Choice: Herding, Platform Attributes and Regulations," with J. Yang, Y.-C. Ho, and X. Yan, Journal of Management Information Systems 35(1) 86-116, 2018.
• "When Ignorance Can Be Bliss: Organizational Structure and Coordination in Electronic Retailing," with D. Liu and V.S. Mookerjee, Information Systems Research 29(1) 70-83, 2018.
• "Optimal Freemium Strategy for Information Goods in the Presence of Piracy," with G. Nan, D. Wu, and M. Li, Journal of the Association of Information Systems 19(4) 266-305, 2018.
• "Disconfirmation Effect on Online Rating Behavior: A Structural Model," with Y.-C. Ho and J. Wu, Information Systems Research 28(3) 626-642, 2017.
• "Quality of Service Based Pricing Schemes for Content Sharing in Peer-to-Peer Networks," with P. De, L. Hao, and Y.-M. Li, Production and Operations Management 26(8) 1427-1443, 2017.
• "The Consensus Effect in Online Health-Care Communities," with L. Yan, Journal of Management Information Systems 34(1) 11-39, 2017.
• "Online Cash-back Shopping: Implications for Consumers and e-Businesses," with Y.-C. Ho and Y.-J. Ho, Information Systems Research 28(2) 250-264, 2017.
• "Influentials, Imitables or Susceptibles? Virality and Word of Mouth Conversations in Online Social Networks," with A. Susarla and C. Oh, Journal of Management Information Systems 33(1) 139-170, 2016.
• "Duopoly Pricing Strategy for Information Products with Premium Service: Free Product or Bundling?" with G. Nan, Z. Zhang, and M. Li, Journal of Management Information Systems 33(1) 260-295, 2016.
• "Network Dynamics: How Can We Find Patients Like Us?" with L. Yan and J. Peng, Information Systems Research 26(3) 496-512, 2015.
• "Do I Follow My Friends or the Crowd? Informational Cascades in Online Movie Ratings," with Y.J. Lee and K. Hosanagar, Management Science 61(9) 2241-2258, 2015. (Management Science Best Paper Award in Information Systems)
• "Feeling Blue? Go Online: An Empirical Study of Online Supports among Patients," with L. Yan, Information Systems Research 25(4) 690-709, 2014.
• "Modeling MGC Strategies under Extreme Negative UGC," with J. Qi, Q. Qu, and J. Mu, Journal of Electronic Commerce Research 15(3) 150-161, 2014.
• "The synchronization club: classification of global economic groups by inequality," with H. Cao and Y. Li, Applied Economics 46(21) 2502-2510, 2014.
• "Effects of Different Types of Free Trials and Ratings in Sampling of Consumer Software: An Empirical Study," with Y.J. Lee, Journal of Management Information Systems 30(3) 213-246, 2014.
• "Leveraging Philanthropic Behavior for Customer Support: The Case of User Support Forums," with W. Jabr, R. Mookerjee and V.S. Mookerjee, Management Information Systems Quarterly 38(1) 187-208, 2014.
• "An empirical investigation on organizational innovation and individual creativity," with J. Peng, G. Zhang, and Z. Fu, Information Systems and e-Business Management 12(3) 465-489, 2014
• "Social media research: A review," with J. Wu and H. Sun, Journal of Systems Science and Systems Engineering 22(3) 257-282, 2013.
• "Self-Organized Formation and Evolution of Peer-to-Peer Networks," with Y.-M. Li and P. De, INFORMS Journal on Computing 25(3) 502-516, 2013.
• "Cooperative Cashing?: An Economic Analysis of Document Duplication in Cooperative Web Caching," with K. Hosanagar, Information Systems Research 23(2) 356-375, 2012.
• "Social Networks and the Diffusion of User-Generated Content: Evidence from YouTube," with A. Susarla and C. Oh, Information Systems Research 23(1) 23-41, 2012. (Association for Information Systems Best Publication of 2012 Award)
• "A Hidden Markov Model of Developer Learning Dynamics in Open Source Software Projects," with P.V. Singh and N. Youn, Information Systems Research 22(4) 790-807, 2011.
• "Network Effects: The Influence of Social Capital on Open Source Project Success," with P.V. Singh and V.S. Mookerjee, Management Information Systems Quarterly 35(4) 813-829, 2011.
• "Impact of Blogs on Sales Revenue: Test of a Network Model," with G. Zhang and A.J. Dubinsky, International Journal of Virtual Communities and Social Networking 3(2) 68-82, 2011.
• "Novel Method of Identifying Time Series Based on Network Graph," with Y. Li and H. Cao, Complexity 17(1) 13-33, 2011.
• "Developer Heterogeneity and Formation of Communication Networks in Open Source Software Development," with P.V. Singh, Journal of Management Information Systems 27(3) 179-210, 2011.
• "Impacts of Essential Elements of Management on IT Application Maturity – A Perspective from Firms in China," with J. Peng, G. Zhang, and R. Chen, Decision Support Systems 51 88-98, 2011.
• "A comparison of two methods for modeling large-scale data from time series as complex networks," with Y. Li and H. Cao, AIP Advances 1 012103, 2011.
• "Diffusion Models for Peer-to-Peer (P2P) Media Distribution: On the Impact of Decentralized, Constrained Supply," with K. Hosanagar and P. Han, Information Systems Research 21(2) 271-287, 2010.
• "Service Differentiation and Price Competition in Web Services," with Z. Zhang and D. Dey, Decision Support Systems 47 93–104, 2009.
• "An Admission-Control Technique for Delay Reduction in Proxy Caching," with C. Kaya, G. Zhang and V.S. Mookerjee, Decision Support Systems 46 594–603, 2009.
• "Analysis of Scale Effects in Peer-to-Peer Networks," with Y.-M. Li and Y.-P. Zhou, IEEE/ACM Transactions on Networking 16(3) 590-602, 2008.
• "Price and QoS Competition in Communication Services," with Z. Zhang and D. Dey, European Journal of Operational Research 187(3) 871-886, 2008.
• "Pricing Communication Services with Delay Guarantee," with Z. Zhang and D. Dey, INFORMS Journal on Computing 19(2) 248-260, 2007.
• "Analyzing Document-Duplication Effects on Policies for Browser and Proxy Caching," with Y. Ji and V.S. Mookerjee, INFORMS Journal on Computing 18(4) 506-522, 2006.
• "An Economic Analysis of Interconnection Arrangements between Internet Backbone Providers," with I.R. Chiang and V.S. Mookerjee, Operations Research 54(4) 776-788, 2006.
• "Allocating Spending between Advertising and Information Technology in Electronic Retailing," with V.S. Mookerjee, Management Science 51(8) 1236-1249, 2005.
• "Economic Control and Inspection Policies for High-Speed Production Systems," with K. Moinzadeh, IIE Transactions 37(8) 711-724, 2005.
• "Comparing Uniform and Flexible Policies for Software Maintenance and Replacement," with V.S. Mookerjee, IEEE Transactions on Software Engineering 31(3) 238-255, 2005.
• "Evaluation and Design of Online Cooperative Feedback Mechanism for Reputation Management," with M. Fan and A.B. Whinston, IEEE Transactions on Knowledge and Data Engineering 17(2) 244-254, 2005.
• "Optimal Processing Policies for an E-Commerce Web Server," with V.S. Mookerjee and K. Moinzadeh, INFORMS Journal on Computing 17(1) 99-110, 2005.
• "Analysis of a Least Recently Used Cache Management Policy for Web Browsers," with V.S. Mookerjee, Operations Research 50(2) 345-357, 2002.
• "Hall effect and geometric phases in Josephson junction arrays," with Ping Ao and X.M. Zhu, Czechoslovak Journal of Physics 46 (Supplement 2) 589-590, 1996.
• "Effects of geometric phases in Josephson junction arrays," with X.M. Zhu and Ping Ao, Physical Review Letters 77 562-565, 1996.
• "Total bandwidth for the Harper equation: Corrections to renormalization analysis," Journal of Physics A: Mathematics and General 28 4163-4173, 1995.
• "Localization and quantum Hall effect in a two dimensional periodic potential," Journal of Physics: Condensed Matter 6 7941-7954, 1994.
• "Quantum magnetotransport of a periodically modulated two-dimensional electron gas," Physical Review B 49 1827-1835, 1994.
• "Total energy for fermions on a two-dimensional lattice in a magnetic field," with D.J. Thouless, Physical Review B 46 2985-2994, 1992.
• "Scaling, localization and total bandwidths for equations with competing periods," with D.J. Thouless, Physica A 177 567-577, 1991.
• "Total bandwidth for the Harper equation: III. Corrections to scaling," with D.J. Thouless, Journal of Physics A: Mathematics and General 24 4055-4066, 1991.
• "The angular distribution of photons in ortho-positronium three photon decay," with B. Yang, X. Tang, and Z. Bian, High Energy Physics and Nuclear Physics (China) 13 487-489, 1989.

Conference Papers

• "You might also like ...: Impact of ML-based Taste Clusters on Sales Diversity On Subscription-Based Platforms," with Y. Kan and U. Ananthakrishnan, WISE 2021.
• "Flow of the game: A Hidden Markov Model of player game-play and reward ads watching behavior in online mobile games," with J. Deng and S. Lee, WISE 2020.
• "Many Hands Make Light Work: Referrals in Reward-Based Crowdfunding," with Y. Jiang and X. Chen, ICIS 2020.
• "How does Virtual Reality Matter? Survival Analyses for Properties in an Online Real Estate Platform," with Z. Yan and Z. Meng, ICIS 2020.
• "Content and Composition: The Impact of Merchant Main Picture on Market Performance," with Z. Yan, U. Ananthakrishnan, and Y. Wang, ICIS 2020.
• "The Impact of Social Recognition on User-Generated Evaluations," with J. Zhang, G. Yin, and J. Ding, ICIS 2020.
• "The Dark Side of Images: Effect of Customer Generated Images on Product Assessment," with Y. Guan, Q. Wei, and G. Chen, ICIS 2019.
• "Facebook Paid Partnership: The Role of Relevance in Video Sponsorship," with S. Doosti and S. Lee, WISE 2019.
• "Knowledge is Like Money: A Demand Estimation for Paid-Knowledge Products," with Y. Jin, J. Zheng, and J. Huang, WISE 2019.
• "The Influence of Self-Regulation of Sharing Economy: Evidence from Unstructured Data," with Z. Meng, Z. Lin, and Y. Wang, WITS 2019.
• "Social Influence in MOBA Game Business: The Tangle of Long and Short-term Relations," with X. Li, S. Zhou, and Y. Liu, WeB 2019.
• "Spoiled for Choice? Personalized Recommendation for Healthcare Decisions: A Multi-Armed Bandit Approach with a Dynamic Discrete-Choice Scheme," with T. Zhou, Y. Wang, and L. Yan, CIST 2019.
• "Knowledge is Like Money: A Demand Estimation for Paid-Knowledge Products," with Y. Jin, J. Zheng, and J. Huang, CIST 2019.
• "A Latent Class Model of Player Reward Ads Watching Behaviors in Online Mobile Games," with J. Deng and S. Lee, CIST 2019.
• "What Makes Online Review Videos Helpful? Evidence from Product Review Videos on YouTube," with K. Park and S. Lee, CIST 2019.
• "Influence of Peer-Based Monetary Incentive on Content Generation: Evidence from a Social Media Site," with Z. Meng, Y.-C. Ho, and J. Wu, CIST 2019.
• "More Than Double Your Impact: An Empirical Study of Match-offer on Crowdfunding Platforms," with Z. Fang and S. Xiao, CIST 2019.
• "Learning to be Creative: A Mutually Exciting Spatial Point Process Model for Idea Generation in Open Innovation," with V. Aggarwal and E. Hwang, CIST 2019.
• "Facebook Paid Partnership: The Role of Relevance in Video Sponsorship," with S. Doosti and S. Lee, CIST 2019.
• "How Rewarding Is the Reward? Demand Estimation of Crowdfunding Platforms," with S. Doosti, WISE 2018.
• "What Goes Around Comes Around: A Structural Matching Model of Online Lending," with Y. Jiang, J. Zheng, and X. Yan, ICIS 2018.
• "Gamified Goals: an Empirical Study of Online Weight-Loss Challenges," with B.G. Bojd, X. Song, and X. Yan, ICIS 2018.
• "Continuous Participation in Online Weight-loss Communities: An Empirical Study," with T. Zhou, Y. Wang, and L. Yan, ICIS 2018.
• "Social Hiring: The Right LinkedIn Connection that Helps You Land a Job," with K. Rhee and E. Hwang, ICIS 2018 (Best Conference Paper Award).
• "Rebalancing Geographic Healthcare Disparity through Telemedicine Consultations," with E. Hwang, X. Guo, and Y. Dang, ICIS 2018.
• "What Goes Around Comes Around: A Structural Matching Model of Online Lending," with Y. Jiang, J. Zheng, and X. Yan, CIST 2018.
• "Rebalancing Geographic Healthcare Disparity through Telemedicine Consultations," with E. Hwang, X. Guo, and Y. Dang, CIST 2018.
• "Social Hiring: The Right LinkedIn Connection that Helps You Land a Job," with K. Rhee and E. Hwang, CIST 2018.
• "Modeling Users' Continuous Participation: Evidence from Online Weight-Loss Communities," with T. Zhou, Y. Wang, and L. Yan, CIST 2018.
• "The Influence of Platform Regulation in the Sharing Economy," with Z. Meng, Z. Lin, and Y. Wang, CIST 2018.
• "Generating Content Under the "Spotlight" of Friends: A Natural Experiment," with Y. Jin, J. Zheng, and J. Huang, CIST 2018.
• "To Mine or Not To Mine: An Analysis of Crypto-mining Profitability," with V. Aggarwal, CIST 2018.
• "Beyond Solving the Last Mile Problem: The Substitution Effects of Bike-sharing on a Ride-sharing Platform," with J. Qin, S. Lee, and X. Yan, CIST 2018.
• "Influence of Peer Based Monetary Incentive on Content Generation," with Z. Meng, Y.-C. Ho, and J. Wu, INFORMS 2018.
• "Generating Content under the 'Spotlight': Evidence from a Natural Experiment," with Y. Jin, J. Zheng, and J. Huang, INFORMS 2018.
• "The Dynamic Impact of Quantity Restriction on Backers' Investment Intention," with Z. Zhou and C. Ma, INFORMS 2018.
• "What Goes around Comes around: A Structural Matching Model of Peer-to-peer Lending," with Y. Jiang, J. Zheng, and X. Yan, INFORMS 2018.
• "Does Size Matter? The Effect of Sampling Size in Online Physical Good Sampling," with Z. Liu, Z. Lin, and Y. Zhang, INFORMS 2018.
• "Consumer Decisions in Payment-based Knowledge Sharing Communities: The Analysis of Zhihu Live," with Z. Fang, G. Liu, and J. Wu, INFORMS 2018.
• "Users' Continuous Participation in the Online Weight-loss Communities," with T. Zhou, L. Yan, and Y. Wang, INFORMS 2018.
• "To Mine or Not To Mine: An Analysis of Crypto-mining Profitability," with V. Aggarwal, INFORMS 2018.
• "Can Employees Benefit from Social Capital? The Evidence from an Enterprise Social Media in China," with J. Deng, INFORMS 2018.
• "Can Your Facebook Page Likes Predict Your Dating Behavior?" with B.G. Bojd, INFORMS 2018.
• "Driver Retention in Ride-sharing Services: An Empirical Study," with K. Rhee, J. Zheng, and F. Ren, INFORMS 2018.
• "Influence of Peer-Based Monetary Incentive on Content Generation: Evidence from a Social Media Site," with Z. Meng, Y.-C. Ho, and J. Wu, CSWIM 2018.
• "Fundraising Dynamics: Backers' Learning and Awareness Formation," with Z. Zhou and C. Ma, CSWIM 2018.
• "Generating Content Under the 'Spotlight': Evidence from a Natural Experiment," with Y. Jin, J. Zheng, and J. Huang, CSWIM 2018.
• "A Dynamic Deep Learning Model of Product Return in Online Shopping," with S. Wu, Y. Wang, and Y. Chen, CSWIM 2018.
• "From Ride-sharing to Bike-sharing: What has Sharing-bike done to the Ride-sharing platform?" with J. Qin, S. Lee, and X. Yan, CSWIM 2018.
• "The signaling effect of sampling size in online physical good sampling campaign," with Z. Liu, Z. Lin, and Y. Zhang, CSWIM 2018.
• "Exploring Mobile App Developers' Switching Behavior between Monetization Methods," Y.J. Lee, K. Xie, and H. Ghasemkhani, CSWIM 2018.
• "What Goes Around Comes Around: A Structural Matching Model of Peer-to-Peer Lending," Y. Jiang, J. Zheng, and X. Yan, CSWIM 2018.
• "Consumer Decisions in Payment-based Knowledge Sharing Communities: The Analysis of Zhihu Live," Z. Fang, G. Liu, and J. Wu, CSWIM 2018.
• "Users' Continuous Participation in Online Weight-loss Communities," with T. Zhou, Y. Wang, and L. Yan, CSWIM 2018.
• "Do Mobile Apps Bring a Longer Tail? An Empirical Study of Sales Concentration in Online Channels" with S. Doosti and Y. Wang, ICIS 2017.
• "Do Mobile Apps Bring a Longer Tail? An Empirical Study of Sales Concentration in Online Channels" with S. Doosti and Y. Wang, INFORMS 2017.
• "Learning by Following: The Role of Followings in Influencing the Quality of User-Generated Content," with Y. Jin and J. Huang, INFORMS 2017.
• "Reward Scheme Design for Online Crowdfunding Projects," with T. Zhou and S. Xiao, INFORMS 2017.
• "Reward on User-Generated Content," with Z. Meng, Y.-C. Ho, and J. Wu, INFORMS 2017.
• "Pricing Virtual Items in Digital Games," with Z. Meng and L. Hao, INFORMS 2017.
• "The Persuasive and Informative Effects of Information Disclosure Policy: Evidence from an Online Supply Chain Finance Market," with Z. Zhou, S. Xiao, and Y.-C. Ho, INFORMS 2017.
• "Technology Restriction and Demand Shifts in Transportation Dynamics: An Empirical Study," K. Rhee, J. Zheng, and Y. Wang, INFORMS 2017.
• "How rewarding is the reward? Demand estimation of reward-based crowdfunding platforms," with S. Doosti, INFORMS 2017.
• "Pricing Virtual Items in Digital Games," with Z. Meng and L. Hao, CIST 2017.
• "Technology Restriction and Demand Shifts in Transportation Dynamics: An Empirical Study," K. Rhee, J. Zheng, and Y. Wang, CIST 2017.
• "How rewarding is the reward? Demand estimation of reward-based crowdfunding platforms," with S. Doosti, CIST 2017.
• "Learning by Following: The Role of Followings in Influencing the Quality of User-Generated Content," with Y. Jin and J. Huang, CSWIM 2017.
• "An Examination of Social Comparison Triggered by Higher Donation Visibility over Social Media Platforms," with J.X. Tan and Y. Lu, ICIS 2016.
• "Conform or Be Cast Out: Quantifying the Effect of Platform Endorsement and Consumer Generated Reputation in Online Service Marketplace Demand System," with J. Zheng and Y. Wang, ICIS 2016.
• "An Investigation of Free Product Sampling and Rating Bias in E-Commerce," with Z. Lin and Y. Zhang, ICIS 2016.
• "The Value of Live Chat on Online Purchase," with J.X. Tan and Y. Wang, ICIS 2016.
• "User Engagement in Social Media: Evidence from a Field Experiment," INFORMS 2016.
• "Do mobile applications bring a longer tail? An empirical study of sales concentration in online channels," with S. Doosti and Y. Wang, INFORMS 2016.
• "Users' Resilience To Kickstarter Scam," with J.X. Tan and Y. Lu, INFORMS 2016.
• "Facilitate Fit Revelation in a Distribution Channel," with L. Hao, INFORMS 2016.
• "Conform or Be Cast Out: Quantifying the Effect of Platform Endorsement and Consumer Generated Reputation in Online Service Marketplace Demand System," with J. Zheng and Y. Wang, INFORMS 2016.
• "Who Drives in My Users? Evidence for App Usage Causal Network from Graphical Model Approach," CIST 2016.
• "User-Generated Charitable Content in Social Media: Evidence from a Field Experiment," CIST 2016.
• "The Effects of Optimal Matching in Social Support in an Online Weight Loss Community," CIST 2016.
• "Lenders' Herding Behavior in Online Peer-to-Peer Lending Platforms Selection," with Y. Jiang, X. Yan and Y.-C. Ho, CSWIM 2016.
• "What strategy is effective? How Weibo can open the black box of social media marketing," with F. Ren and F. Wan, CSWIM 2016.
• "Announcing Privacy Threshold in Mobile Operation System Competition: Legal Collusion," with Z. Meng and J.X. Tan, CSWIM 2016.
• "Platform Endorsement V.S. User Generated Evaluation: Determinant for Sales on Online-Marketplace for Service Goods," with J. Zheng and Y. Wang, CSWIM 2016.
• "Why Should I Donate? Examining Reputation, Peer Effect and Popularity Effect on Charitable Giving over Social Media Platforms," with J.X. Tan and Y. Lu, WISE 2015.
• "Optimal Promotion with Consumer Learning on Online-to-Offline Platform: Evidence from an Online Taxi App," with J. Zheng, F. Ren, and X. Chen, ICIS 2015.
• "Loyalty Program: the Dilemma of Shipping Fee," with J.X. Tan and Y.-C. Ho, INFORMS 2015.
• "Building Reputation through Charitable Giving in Online Social Networking Environment," with J.X. Tan and Y. Lu, INFORMS 2015.
• "The Value of Live Chat in Online Purchase," with J.X. Tan and Y. Wang, INFORMS 2015.
• "Get in Shape with Online Friends: Obesity and Social Networks," with X. Yan, X. Song, and B.G. Bojd, INFORMS 2015.
• "Corporate Information Disclosure on Social Media," with Q. Qu and B.G. Bojd, INFORMS 2015.
• "Impact of Firm Social Media Engagement on Sales Revenue," with F. Ren and F. Wan, INFORMS 2015.
• "Does Help Help? An Empirical Investigation of Review in Review in User Generated Review System," with J. Zheng and G. Yin, INFORMS 2015.
• "Loyalty Program: the Dilemma of Shipping Fee," with J.X. Tan and Y.-C. Ho, CIST 2015.
• "Optimal Promotion with Consumer Learning on Online-to-Offline Platform: Evidence from an Online Taxi App," with J. Zheng, F. Ren, and X. Chen, CIST 2015.
• "Economic Value of Firm Social Media Engagement," with F. Ren and F. Wan, CSWIM 2015.
• "Optimal Promotion with Consumer Learning on Online-to-Offline Platform: Evidence from an Online Taxi App," with J. Zheng, F. Ren, and X. Chen, CSWIM 2015.
• "Loyalty Program: the Dilemma of Shipping Fee," with J.X. Tan and Y.-C. Ho, CSWIM 2015.
• "An Empirical Examination of the Survivability of New Sellers in an Online Marketplace," with J.X. Tan and M. Fan, WISE 2014.
• "E-Commerce Strategy: An Analysis of Online Marketplace Seller Tactics," with H. Sun and M. Fan, CIST 2014.
• "The Impact of Social Capital on Realizing a Trust-based Social Network," with H. Sun, ICIS 2013.
• "Online Cashback Platform: A New Affiliate Strategy for E-Business," with Y.-C. Ho and Y.-J. Ho, ICIS 2013.
• "Which Factors Determine User's First and Repeat On-line Music Listening Respectively? Music Itself, User Itself, or Online Feedback," with J. Qi and L. Liu, ICIS 2013.
• "Leniency or Severity: Dynamics of Online Rating Behavior," with Y.-C. Ho and J. Wu, CIST 2013.
• "Shared Minds: How Patients Use Collaborative Web-Based Information Sharing," with L. Yan and S.X. Sun, WISE 2012.
• "An Empirical Study of Market Switching Behavior of Mobile App Developers," with Y.J. Lee and H. Ghasemkhani, WISE 2012.
• "Online Opinion Formation and Social Interactions," with L. Yan, R. Guerin, K. Hosanagar, and S. Venkatesh, Proceedings of WITS 2012.
• "A Hidden Markov Model for Conversion Rate Dynamics in Online Retail," with L. Hao and M. Fan, Proceedings of ICIS 2012.
• "Collaborative Information Sharing and Patients' Health Education," with L. Yan and S. X. Sun. 3rd Workshop on Health Information Technology and Economics.
• "Exploring Innovation in the Context of Employee Relationship and IT-enabled Knowledge Sharing," with J. Peng, G. Zhang, and Z. Fu. Proceedings of WEB 2011.
• "Patients' Online Social Interactions and Health Belief Updates," with L. Yan, Proceedings of WITS 2011.
• "A Structural Estimation of Bidding Behavior in Overlapping Online Auctions," with L. Hao and A. Tripathi, WISE 2011.
• "Patients' Online Social Interactions and Treatment Belief Updating," with L. Yan, Proceedings of CIST 2011.
• "Online Conversations and Patients' Perceived Treatment Belief Updating," with L. Yan, 2nd Workshop on Health Information Technology and Economics.
• "The Economic Role of Rating Behavior in Third-Party Application Market," with L. Hao, X. Li, and J. Xu, Proceedings of ICIS 2011.
• "Feel Blue so Go Online: An Empirical Study of Online Supports among Patients," with L. Yan, The 2011 Winter Conference on Business Intelligence, Salt Lake City, March 2011.
• "Word of Mouth Cascades and Social Influence on YouTube," with J. Oh and A. Susarla, The 2011 Winter Conference on Business Intelligence, Salt Lake City, March 2011.
• "Network Dynamics: How Can We Find Patients Like Us?" with L. Yan, 1st Workshop on Health Information Technology and Economics.
• "Feeling Blue so Going Online: An Empirical Study on Effectiveness of Virtual Social Networking," with L. Yan, 1st Workshop on Health Information Technology and Economics.
• "Structural Cohesion and Opinion Propagation in Online Social Networks," with J. Oh and A. Susarla, 6th Statistical Challenges on Electronic Commerce Research (SCECR) 2010.
• "Do I Follow My Friends or the Crowds? Examining Informational Cascades in Online Movie Reviews," with Y.J. Lee and K. Hosanagar, Proceedings of WITS 2009.
• "Social Networks Come to Healthcare," with L. Yan, Proceedings of CIST 2009.
• "Word-of-Mouth Communication in a Network of Blogs," with G. Zhang, Proceedings of 3rd CSWIM 2009.
• "Healthcare Social Networking," with L. Yan, Proceedings of 3rd CSWIM 2009.
• "Information Cascades and Contagion in Online Social networks," with J. Oh and A. Susarla, 5th Statistical Challenges on Electronic Commerce Research (SCECR) 2009.
• "Diffusion of User-Generated Content in a Social Network Structure," with J. Oh and A. Susarla, Proceedings of ICIS 2008.
• "Making Money with Free Software? Sampling Implications of Software Market," with Y.J. Lee, Proceedings of CIST 2008.
• "Social Capital, Structural Holes and Team Composition: Collaborative Networks of the Open Source Software Community," with P.V. Singh and V.S. Mookerjee, Proceedings of ICIS 2007.
• "An Empirical Study of Software Sampling: Categorical Heterogeneity and Vendor Strategy," with Y.J. Lee, Proceedings of WITS 2007, 73-78, 2007.
• "Digital Content Diffusion in a Social Network Structure," with J. Oh and A. Susarla, Proceedings of WEB 2007.
• "Quality of Service Feedback and Intra-organization Coordination for E-retailers," with J. Oh and V.S. Mookerjee, Proceedings of WEB 2007.
• "Determinants of Open Source Software License Choice: A Social Influence Perspective," with P.V. Singh, C. Phelps, and M. Fan, WISE 2007.
• "Planning to First Release: A Conditional Hazard Function Approach for Investigating Open Source Software Development Time," with P.V. Singh, Proceedings of WITS 2006,127-132, 2006.
• "Optimal Timing of Dynamic Requirement Reviews for Software Development Process," with M. Fan and Y. Ji, Proceedings of WITS 2006, 139-144, 2006.
• "Optimal Patching Effort against Internet Worms," with G. Zhang and K. Kannan, Proceedings of WITS 2006, 151-156, 2006.
• "Stability and Efficiency of Communications Networks in Open Source Software Development," with P.V. Singh, Proceedings of WITS 2005, 177-182, 2005.
• "Optimal Rebating Strategies in Peer-to-Peer Content Distribution," with P. Han and K. Hosanagar, Proceedings of ICIS 2005, 673-687, 2005.
• "Dynamic Pricing for Technology Upgrades in Telecommunication Industry," with P. Han and J. Peng, Proceedings of ICEC, 254-260, 2005.
• "The Spread of Internet Worms and the Optimal Patch Release Strategies," with P. Han, Proceedings of AMCIS-11, 3283-3291, 2005.
• "On the Formation of Peer-to-Peer Networks: Self-Organized Sharing and Groups," with Y.-M. Li and P. De, Proceedings of ICIS 2004, 493-503, 2004.
• "Diffusion of Digital Products in P2P Networks," with P. Han and K. Hosanagar, Proceedings of ICIS 2004, 505-515, 2004.
• "Optimal Duplication in Cooperative Web Caching," with K. Hosanagar, Proceedings of WITS 2004, 92-97, 2004.
• "Pricing Peer-to-Peer Networks: Content Provision and Search Intermediary," with Y.-M. Li and P. De, Proceedings of WITS 2004, 194-199, 2004.
• "Optimal Rebating Strategies in P2P Diffusion," with P. Han and K. Hosanagar, Proceedings of WITS 2004, 188-193, 2004.
• "On the Scale of Peer-to-Peer Network," with Y.-M. Li and Y.-P. Zhou, Proceedings of WITS 2003, 13-18, 2003.
• "Price and Quality Competition in Data Networks under Delay Guarantee," with Z. Zhang, Proceedings of WITS 2003, 139-144, 2003.
• "Optimal Peering Strategies for Internet Service Providers," with I.R. Chiang and V.S. Mookerjee, Proceedings of WITS 2001, 163-168, 2001.
• "Balancing Marketing and Information Technology," Proceedings of WITS 2000, 151-156, 2000. (Best paper nomination)
• "Optimal Software Maintenance and Replacement Policies," with V.S. Mookerjee, Proceedings of WITS 99, 216-221, 1999.
• "Pricing Strategy for Priority-Based Networks," with D. Dey, Proceedings of WITS 99, 117-122, 1999.
• "Lattice calculation of de Haas-van Alphen oscillations," with R. Fleckinger, M. Gusmåo, and T. Ziman, Proceedings of the Physical Phenomena At High Magnetic Fields-II Conference, edited by Z. Fisk, L. Gor'kov, D. Meltzer, and R. Schrieffer, (World Scientific, Singapore), 776-781, 1996.
• "Novel de Haas-van Alphen oscillation at half filling," with T. Ziman, Proceedings of the Physical Phenomena At High Magnetic Fields-II Conference, edited by Z. Fisk, L. Gor'kov, D. Meltzer, and R. Schrieffer, (World Scientific, Singapore), 110-115,1996.
• "Localization in quantum Hall effect: statistics of Chern integers," Nordita Conference on The Physics of The 2D Electron Gas, Copenhagen, Denmark, June 1995.
• "Quantum Hall effect in a periodic potential: Motion of Chern integers," ESPIRIT Euroconference and workshop on quantum Hall effect, Torino, Italy, June 1994.

Presentations

• "How rewarding is the reward? Demand estimation of reward-based crowdfunding platforms," ISOM Hightower Research Seminar Series, Goizueta Business School, Emory University, November 2021.
• "Data and AI: Economics and Applications," Keynote Speech at the 1st Conference on Data Intelligence and Management, Chengdu, October 2021.
• "The Price of Context Information for Multi-Armed Bandits," Keynote Speech at MarbleKDD, August 2021.
• "FinTech Research: Examples of Blockchain, Crowdfunding, and Supply Chain Finance," Keynote Speech at CSWIM, Chongqing, June 2021.
• "Causal Models for Data Analytics," Summer Workshop on Big Data and Business Analytics, School of Management, Harbin Institute of Technology, July 2021.
• "How rewarding is the reward? Demand estimation of reward-based crowdfunding platforms," Carroll School of Management, Boston College, April 2021.
• "The Persuasive and Informative Effects of Information Disclosure Policy: Evidence from an Online Supply Chain Finance Market," Beijing Institute of Technology, Beijing, July 2018.
• "The Persuasive and Informative Effects of Information Disclosure Policy: Evidence from an Online Supply Chain Finance Market," University of Science and Technology Beijing, Beijing, July 2018.
• "Causal Models for Data Analytics," Summer Workshop on Big Data and Business Analytics, School of Management, Harbin Institute of Technology, July 2018.
• "The Persuasive and Informative Effects of Information Disclosure Policy: Evidence from an Online Supply Chain Finance Market," KAIST Business School, Seoul, June 2018.
• "The Persuasive and Informative Effects of Information Disclosure Policy: Evidence from an Online Supply Chain Finance Market," University of Illinois at Chicago, April 2018.
• "The Persuasive and Informative Effects of Information Disclosure Policy: Evidence from an Online Supply Chain Finance Market," W. P. Carey School of Business, Arizona State University, February 2018.
• "Optimizing Two Sided Promotion for Transportation Network Companies: A Structural Model with Conditional Bayesian Learning," Merage School of Business, University of California, Irvine, November 2017.
• "Does Help Help? An Empirical Investigation of Review-in-Review in User-Generated Content System," Marshall School of Business, University of Southern California, November 2017.
• "Optimizing Two Sided Promotion for Transportation Network Companies: A Structural Model with Conditional Bayesian Learning," Jindal School of Management, University of Texas at Dallas, October 2017.
• "Effect of Disconfirmation on Online Rating Behavior: A Dynamic Analysis," Leavey School of Business, Santa Clara University, November 2015.
• "Effect of Disconfirmation on Online Rating Behavior: A Dynamic Analysis," McCombs School of Business, University of Texas at Austin, November 2014.
• "Effect of Disconfirmation on Online Rating Behavior: A Dynamic Analysis," Rady School of Management, University of California, San Diego, October 2014.
• "Effect of Disconfirmation on Online Rating Behavior: A Dynamic Analysis," Robert H. Smith School of Business, University of Maryland, November 2013.
• "An Empirical Study of Online Supports among Patients," Rutgers Business School, Newark, November 2013.
• "Effect of Disconfirmation on Online Rating Behavior: A Dynamic Analysis," Sauder School of Business, University of British Columbia, Vancouver, October 2013.
• "An Empirical Study of Online Supports among Patients," MIS Distinguished Speaker, Krannert School of Management, Purdue University, September 2013.
• "An Empirical Study of Online Supports among Patients," Warrington College of Business Administration, University of Florida, Gainesville, May 2013.
• Research Workshop on Statistical Methods for Large Scale Social Networks, Broad College of Business, Michigan State University, East Lansing, April 2013.
• "Do I Follow My Friends or the Crowd? Examining Informational Cascades in Online Movie Reviews," David Eccles School of Business, University of Utah, Salt Lake City, April 2013.
• "Do I Follow My Friends or the Crowd? Examining Informational Cascades in Online Movie Reviews," Broad College of Business, Michigan State University, East Lansing, April 2013.
• "An Empirical Study of Online Supports among Patients," Eller College of Business, University of Arizona, Tucson, November 2012.
• "An Empirical Study of Online Supports among Patients," W. P. Carey School of Business, Arizona State University, Tempe, October 2012.
• "Competition and Integration of Digital Content Distribution Channels," Workshop on Theory of Economics in Information Systems (TEIS), Laguna Beach, June 2012.
• "Feel Blue so Go Online: An Empirical Study of Online Supports among Patients," Paul Merage School of Business, University of California, Irvine, March 2012.
• "Exploring Innovation in the Context of Employee Relationship and IT-enabled Knowledge Sharing," WEB 2011, Shanghai, December 2011.
• "Online Social Networks and Healthcare," Harborview Medical Center Injury Prevention and Research Center (HIPRC), Seattle, June 2011.
• "Feel Blue so Go Online: An Empirical Study of Online Supports among Patients," The 2011 Winter Conference on Business Intelligence, Salt Lake City, March 2011.
• "Word of Mouth Cascades and Social Influence on YouTube," The 2011 Winter Conference on Business Intelligence, Salt Lake City, March 2011.
• "Feel Blue so Go Online: An Empirical Study of Online Supports among Patients," School of Management, Georgia Institute of Technology, March 2011 (ITM Distinguished Speaker Series).
• "Do I Follow My Friends or the Crowd? Examining Informational Cascades in Online Movie Reviews," Carlson School, University of Minnesota, November 2010.
• "Learning from Past Failure: An Empirical Study of Software Vulnerabilities," 2010 University of Alberta Workshop on IT Security, Edmonton, Alberta, Canada, May 2010.
• "A Hidden Markov Model of Developer Learning Dynamics in Open Source Software Projects," UF ISOM Workshop, University of Florida, February 2009.
• "Research and Publishing in Information Systems," Advanced Training Program on Economic and BA Research and Publishing, Department of Economics, University of Washington, August 2008.
• "Developer Learning Dynamics in Open Source Software Projects," School of Management, University of Texas at Dallas, February 2008.
• "Social Networks: Theory and Applications," A tutorial given at the INFORMS Annual Meeting, Seattle, November 2007.
• "Developer Learning Dynamics in Open Source Software Projects: A Hidden Markov Model Analysis," Krannert School of Management, Purdue University, April 2007 (John and Cheryl Coffin Academic Speaker Series).
• "An Economic Analysis of Interconnection Arrangements between Internet Backbone Providers," Tepper School of Business, Carnegie Mellon University, April 2005.
• "An Economic Analysis of Interconnection Arrangements between Internet Backbone Providers," University of Alberta, April 2005.
• "Optimal Duplication in Cooperative Web Caching," WITS 2004, Washington D.C., December 2004.
• "Pricing Peer-to-Peer Networks: Content Provision and Search Intermediary," WITS 2004, Washington D.C., December 2004.
• "Interconnection at Congested Internet Backbones," INFORMS, San Jose, November 2002.
• "Balancing Marketing and Information Technology," WITS 2000, Brisbane, Australia, December 2000.
• "Value Based Design of Electronic Commerce Servers," The Wharton School, February 2000.
• "Value Based Design of Electronic Commerce Servers," Carnegie Mellon University, February 2000.
• "Value Based Design of Electronic Commerce Servers," University of Texas at Dallas, January, 2000.
• "Optimal Polices for Software Maintenance and Replacement," December, 1999, WITS 99, Charlotte, North Carolina.
• "Pricing Strategy for Priority-Based Networks," December, 1999, WITS 99, Charlotte, North Carolina.
• "Analysis of an LRU-Based Caching Policy in Web Browsers," October, 1998, INFORMS Conference, Seattle, Washington.
• "Localization in quantum Hall effect: statistics of Chern integers," Nordita Conference on The Physics of The 2D Electron Gas, Copenhagen, Denmark, June 1995.
• "Novel de Haas-van Alphen oscillation at half filling," Conference on Physical Phenomena at High Magnetic Fields-II, Tallahassee, Florida, May 1995.
• "Quantum Hall effect in a periodic potential: Motion of Chern integers," ESPIRIT Euroconference and workshop on quantum Hall effect, Torino, Italy, June 1994.
• "Scaling of total bandwidth for the Harper equation," Laboratoire de Physique Quantique, Toulouse, France, March 1994.
• "Localization and quantum Hall effect in a two dimensional periodic potential," 1993 APS March Meeting, Seattle, Washington.
• "Total energy for two dimensional lattice fermions in a magnetic field," 1992 APS March Meeting, Indianapolis, Indiana.