Bio

Johari is broadly interested in the design, economic analysis, and operation of online platforms, as well as statistical and machine learning techniques used by these platforms (such as search, recommendation, matching, and pricing algorithms).

Academic Appointments

Honors & Awards

  • George E. Nicholson Student Paper Competition (First Place), INFORMS (2003)
  • Doctoral Dissertation Award (Honorable Mention), ACM (2004)
  • George M. Sprowls Doctoral Dissertation Award, MIT EECS (2004)
  • Management Science and Engineering Graduate Teaching Award, Stanford (2005)
  • Okawa Foundation Research Grant, Okawa Foundation (2005)
  • Telecommunications Dissertation Award, INFORMS (2006)
  • CAREER Award, National Science Foundation (2007)
  • Foundation Award, UPS (2008)
  • Management Science and Engineering Graduate Teaching Award, Stanford (2010)
  • Management Science and Engineering Graduate Teaching Award, Stanford (2017)
  • Best Paper Award, ACM (2018)

Boards, Advisory Committees, Professional Organizations

  • Program co-chair, ACM Economics and Computation (2019 - 2019)
  • Co-creator and co-organizer, Marketplace Innovation Workshop (2015 - 2019)

Professional Education

  • PhD, MIT (2004)

Contact

  • Academic
    rjohari@stanford.edu
    University - Faculty Department: Management Science and Engineering Position: Professor
    • Huang Engineering Center, Room 311
    • 475 Via Ortega
    • Stanford,  California  94305-4121 
    (650) 723-1614 (fax)

Additional Info

  • Mail Code: 4121

Links

2021-22 Courses

Stanford Advisees

All Publications

  • Managing Congestion in Matching Markets M&SOM-MANUFACTURING & SERVICE OPERATIONS MANAGEMENT Arnosti, N., Johari, R., Kanoria, Y. 2021; 23 (3): 620-636

    View details for DOI 10.1287/msom.2020.0927

    View details for Web of Science ID 000653675200007

  • Designing Informative Rating Systems: Evidence from an Online Labor Market M&SOM-MANUFACTURING & SERVICE OPERATIONS MANAGEMENT Garg, N., Johari, R. 2021; 23 (3): 589-605

    View details for DOI 10.1287/msom.2020.0921

    View details for Web of Science ID 000653675200005

  • Matching While Learning OPERATIONS RESEARCH Johari, R., Kamble, V., Kanoria, Y. 2021; 69 (2): 655–81

    View details for DOI 10.1287/opre.2020.2013

    View details for Web of Science ID 000631703600016

  • Studying Undergraduate Course Consideration at Scale AERA OPEN Chaturapruek, S., Dalberg, T., Thompson, M. E., Giebel, S., Harrison, M. H., Johari, R., Stevens, M. L., Kizilcec, R. F. 2021; 7

    View details for DOI 10.1177/2332858421991148

    View details for Web of Science ID 000620611500001

  • Learning Unknown Service Rates in Queues: A Multiarmed Bandit Approach OPERATIONS RESEARCH Krishnasamy, S., Sen, R., Johari, R., Shakkottai, S. 2021; 69 (1): 315–30

    View details for DOI 10.1287/opre.2020.1995

    View details for Web of Science ID 000615320600020

  • Adaptive Experimental Design with Temporal Interference: A Maximum Likelihood Approach Glynn, P., Johari, R., Rasouli, M., Larochelle, H., Ranzato, M., Hadsell, R., Balcan, M. F., Lin, H. NEURAL INFORMATION PROCESSING SYSTEMS (NIPS). 2020

    View details for Web of Science ID 000627697000035

  • Competition and Efficiency of Coalitions in Cournot Games With Uncertainty IEEE TRANSACTIONS ON CONTROL OF NETWORK SYSTEMS Zhang, B., Johari, R., Rajagopal, R. 2019; 6 (2): 884–96

    View details for DOI 10.1109/TCNS.2018.2880302

    View details for Web of Science ID 000469874200037

  • Semi-Parametric Dynamic Contextual Pricing Shah, V., Blanchet, J., Johari, R., Wallach, H., Larochelle, H., Beygelzimer, A., d'Alche-Buc, F., Fox, E., Garnett, R. NEURAL INFORMATION PROCESSING SYSTEMS (NIPS). 2019

    View details for Web of Science ID 000534424302037

  • Optimal Testing in the Experiment-rich Regime Schmit, S., Shah, V., Johari, R., Chaudhuri, K., Sugiyama, M. MICROTOME PUBLISHING. 2019: 626–33

    View details for Web of Science ID 000509687900065

  • Designing Optimal Binary Rating Systems Garg, N., Johari, R., Chaudhuri, K., Sugiyama, M. MICROTOME PUBLISHING. 2019

    View details for Web of Science ID 000509687901101

  • Bandit Learning with Positive Externalities Shah, V., Blanchet, J., Johari, R., Bengio, S., Wallach, H., Larochelle, H., Grauman, K., CesaBianchi, N., Garnett, R. NEURAL INFORMATION PROCESSING SYSTEMS (NIPS). 2018

    View details for Web of Science ID 000461823304089

  • On Learning the c mu Rule in Single and Parallel Server Networks Krishnasamy, S., Arapostathis, A., Johari, R., Shakkottai, S., IEEE IEEE. 2018: 153–54

    View details for Web of Science ID 000461021200022

  • Pricing and referrals in diffusion on networks GAMES AND ECONOMIC BEHAVIOR Leduc, M. V., Jackson, M. O., Johari, R. 2017; 104: 568–94

    View details for DOI 10.1016/j.geb.2017.05.011

    View details for Web of Science ID 000408296200034

  • The Importance of Exploration in Online Marketplaces IEEE INTERNET COMPUTING Banerjee, S., Johari, R., Zhou, Z. 2016; 20 (1): 20-26

    View details for Web of Science ID 000367944200004

  • Competition and Coalition Formation of Renewable Power Producers IEEE TRANSACTIONS ON POWER SYSTEMS Zhang, B., Johari, R., Rajagopal, R. 2015; 30 (3): 1624-1632

    View details for DOI 10.1109/TPWRS.2014.2385869

    View details for Web of Science ID 000353641000054

  • Equilibria of dynamic games with many players: Existence, approximation, and market structure JOURNAL OF ECONOMIC THEORY Adlakha, S., Johari, R., Weintraub, G. Y. 2015; 156: 269-316

    View details for DOI 10.1016/j.jet.2013.07.002

    View details for Web of Science ID 000349728700010

  • Can I Take a Peek? Continuous Monitoring of Online A/B Tests Johari, R., ACM ASSOC COMPUTING MACHINERY. 2015: 915

    View details for DOI 10.1145/2740908.2743061

    View details for Web of Science ID 000382666600213

  • Mean Field Equilibria of Dynamic Auctions with Learning MANAGEMENT SCIENCE Iyer, K., Johari, R., Sundararajan, M. 2014; 60 (12): 2949-2970

    View details for DOI 10.1287/mnsc.2014.2018

    View details for Web of Science ID 000346204900005

  • Information Aggregation and Allocative Efficiency in Smooth Markets MANAGEMENT SCIENCE Iyer, K., Johari, R., Moallemi, C. C. 2014; 60 (10): 2509-2524

    View details for DOI 10.1287/mnsc.2014.1929

    View details for Web of Science ID 000343421800009

  • A Buffer-Based Approach to Rate Adaptation: Evidence from a Large Video Streaming Service SIGCOMM Conference Huang, T., Johari, R., McKeown, N., Trunnell, M., Watson, M. ASSOC COMPUTING MACHINERY. 2014: 187–98

    View details for DOI 10.1145/2619239.2626296

    View details for Web of Science ID 000350564600039

  • Mean Field Equilibrium in Dynamic Games with Strategic Complementarities OPERATIONS RESEARCH Adlakha, S., Johari, R. 2013; 61 (4): 971-989

    View details for DOI 10.1287/opre.2013.1192

    View details for Web of Science ID 000323931800013

  • Dynamics in tree formation games GAMES AND ECONOMIC BEHAVIOR Arcaute, E., Dyagilev, K., Johari, R., Mannor, S. 2013; 79: 1-29

    View details for DOI 10.1016/j.geb.2013.01.002

    View details for Web of Science ID 000317711400001

  • Mean Field Equilibria of Multi Armed Bandit Games 50th Annual Allerton Conference on Communication, Control, and Computing (Allerton) Gummadi, R., Johari, R., Yu, J. Y. IEEE. 2013: 1110–1110

    View details for Web of Science ID 000320654000151

  • Economic Modeling in Networking: A Primer. Foundations and Trends in Networking Berry, R., Johari , R. NOW Publishers.. 2013: 1
  • Heavy Traffic Approximation of Equilibria in Resource Sharing Games IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS Wu, Y., Loc Bui, L., Johari, R. 2012; 30 (11): 2200-2209

    View details for DOI 10.1109/JSAC.2012.121212

    View details for Web of Science ID 000311673200012

  • Traffic Engineering With Semiautonomous Users: A Game-Theoretic Perspective IEEE-ACM TRANSACTIONS ON NETWORKING DiPalantino, D., Johari, R. 2012; 20 (6): 1938-1949

    View details for DOI 10.1109/TNET.2012.2208475

    View details for Web of Science ID 000313661000020

  • Resource management with semiautonomous users. To appear in IEEE/ACM Transactions on Networking. DiPalantino, D., Johari, R. 2012
  • Mean field equilibria of multiarmed bandit games. Gummadi, R., Johari, R., Yu , J.-Y. 2012
  • Information and the value of execution guarantees. Iyer, K., Johari, R., Moallemi , C., C. 2012
  • Mean Field Equilibria of Dynamic Auctions with Learning SI GECOM EXCHANGES Iyer, K., Johari, R., Sundararajan, M. 2011; 10 (3): 10–14

    View details for Web of Science ID 000218516100003

  • Bilateral and Multilateral Exchanges for Peer-Assisted Content Distribution IEEE-ACM TRANSACTIONS ON NETWORKING Aperjis, C., Johari, R., Freedman, M. J. 2011; 19 (5): 1290-1303

    View details for DOI 10.1109/TNET.2011.2114898

    View details for Web of Science ID 000296014000004

  • Parameterized Supply Function Bidding: Equilibrium and Efficiency OPERATIONS RESEARCH Johari, R., Tsitsiklis, J. N. 2011; 59 (5): 1079-1089

    View details for DOI 10.1287/opre.1110.0980

    View details for Web of Science ID 000297164900002

  • Competition and contracting in service industries OPERATIONS RESEARCH LETTERS DiPalantino, D., Johari, R., Weintraub, G. Y. 2011; 39 (5): 390-396

    View details for DOI 10.1016/j.orl.2011.06.011

    View details for Web of Science ID 000295712400019

  • How Many Tiers? Pricing in the Internet Transit Market COMPUTER COMMUNICATION REVIEW Valancius, V., Lumezanu, C., Feamster, N., Johari, R., Vazirani, V. V. 2011; 41 (4): 194-205

    View details for DOI 10.1145/2043164.2018459

    View details for Web of Science ID 000302124800017

  • Uncoupled Potentials for Proportional Allocation Markets 50th IEEE Conference of Decision and Control (CDC)/European Control Conference (ECC) Nadav, U., Johari, R., Roughgarden, T. IEEE. 2011: 4479–4484

    View details for Web of Science ID 000303506205016

  • Economic Modeling in Networking: A Primer FOUNDATIONS AND TRENDS IN NETWORKING Berry, R. A., Johari, R. 2011; 6 (3): 165–286

    View details for DOI 10.1561/1300000011

    View details for Web of Science ID 000420146100001

  • Heavy traffic approximation of equilibria in resource sharing games. Wu, Y., Bui, L., Johari, R. 2011
  • Committing bandits. Bui, L., Johari, R., Mannor, S.  2011
  • How many tiers? Pricing in the Internet transit market. Valancius, V., Lumezanu, C., Feamster, N., Johari, R., Vazirani, V. 2011
  • Mean field equilibria of dynamic auctions with learning. Iyer, K., Johari, R., Sundararajan, M. 2011
  • Investment and Market Structure in Industries with Congestion OPERATIONS RESEARCH Johari, R., Weintraub, G. Y., Van Roy, B. 2010; 58 (5): 1303-1317

    View details for DOI 10.1287/opre.1100.0827

    View details for Web of Science ID 000283244800003

  • Designing Aggregation Mechanisms for Reputation Systems in Online Marketplaces SI GECOM EXCHANGES Aperjis, C., Johari, R. 2010; 9 (1)

    View details for Web of Science ID 000218499400003

  • Optimal Windows for Aggregating Ratings in Electronic Marketplaces MANAGEMENT SCIENCE Aperjis, C., Johari, R. 2010; 56 (5): 864-880

    View details for DOI 10.1287/mnsc.1090.1145

    View details for Web of Science ID 000277653900008

  • Demand-Aware Content Distribution on the Internet IEEE-ACM TRANSACTIONS ON NETWORKING Shakkottai, S., Johari, R. 2010; 18 (2): 476-489

    View details for DOI 10.1109/TNET.2009.2035047

    View details for Web of Science ID 000276685300011

  • Information-Theoretic Operating Regimes of Large Wireless Networks IEEE TRANSACTIONS ON INFORMATION THEORY Ozgur, A., Johari, R., Tse, D. N., Leveque, O. 2010; 56 (1): 427-437

    View details for DOI 10.1109/TIT.2009.2034819

    View details for Web of Science ID 000273134100030

  • Mean field equilibrium in dynamic games with complementarities. Adlakha, S., Johari, R. 2010
  • Information aggregation in smooth markets. Iyer, K., Johari, R., Moallemi, C., C. 2010
  • Congestible services and network effects. Johari, R., Kumar, S. 2010
  • Information theoretic operating regimes of large wireless networks. IEEE Transactions on Information Theory Ozgur, A., Johari, R., Tse, D., Leveque, O. 2010; 1 (56): 427-437
  • Mean field analysis for large population stochastic games. Adlakha, S., Johari, R., Weintraub, G., Y., Goldsmith, A. 2010
  • On Oblivious Equilibrium in Large Population Stochastic Games 49th IEEE Conference on Decision and Control (CDC) Adlakha, S., Johari, R., Weintraub, G. Y., Goldsmith, A. IEEE. 2010: 3117–3124

    View details for Web of Science ID 000295049103092

  • Mean Field Equilibrium in Dynamic Games with Complementarities 49th IEEE Conference on Decision and Control (CDC) Adlakha, S., Johari, R. IEEE. 2010: 6633–6638

    View details for Web of Science ID 000295049107080

  • Network Formation: Bilateral Contracting and Myopic Dynamics IEEE TRANSACTIONS ON AUTOMATIC CONTROL Arcaute, E., Johari, R., Mannor, S. 2009; 54 (8): 1765-1778

    View details for DOI 10.1109/TAC.2009.2024564

    View details for Web of Science ID 000268756200003

  • Efficiency of Scalar-Parameterized Mechanisms 43rd Annual Allerton Conference on Communication, Control and Computing Johari, R., Tsitsiklis, J. N. INFORMS. 2009: 823–39

    View details for DOI 10.1287/opre.1080.0638

    View details for Web of Science ID 000270032800003

  • Supermodular Network Games 47th Annual Allerton Conference on Communication, Control, and Computing Manshadi, V. H., Johari, R. IEEE. 2009: 1369–1376

    View details for Web of Science ID 000279627100187

  • Network formation: bilateral contracting and myopic dynamics. IEEE Transactions on Automatic Control Arcaute, E., Johari, R., Mannor, S. 2009; 8 (54): 1765-1778
  • Comparing Multilateral and Bilateral Exchange Models for Content Distribution IEEE Information Theory Workshop on Networking and Information Theory Aperjis, C., Freedman, M. J., Johari, R. IEEE. 2009: 145–146

    View details for Web of Science ID 000273966100031

  • Traffic Engineering vs. Content Distribution: A Game Theoretic Perspective IEEE INFOCOM Conference 2009 DiPalantino, D., Johari, R. IEEE. 2009: 540–548

    View details for Web of Science ID 000275366200061

  • Traffic Engineering, Content Distribution, and Continuous Potential Games International Conference on Game Theory for Networks DiPalantino, D., Johari, R. IEEE. 2009: 98–99

    View details for Web of Science ID 000274558900014

  • Oblivious Equilibrium: An Approximation to Large Population Dynamic Games with Concave Utility International Conference on Game Theory for Networks Adlakha, S., Johari, R., Weintraub, G., Goldsmith, A. IEEE. 2009: 68–69

    View details for Web of Science ID 000274558900009

  • A Mean Field Approach to Competition in Large Scale Wireless Systems MobiHoc S3 Workshop Adlakha, S., Johari, R., Weintraub, G., Goldsmith, A. ASSOC COMPUTING MACHINERY. 2009: 13–15

    View details for Web of Science ID 000282529000004

  • Lump-Sum Markets for Air Traffic Flow Control with Competitive Airlines PROCEEDINGS OF THE IEEE Waslander, S. L., Roy, K., Johari, R., Tomlin, C. J. 2008; 96 (12): 2113-2130

    View details for DOI 10.1109/JPROC.2008.2006197

    View details for Web of Science ID 000262934800015

  • Information Theoretic Operating Regimes of Large Wireless Networks IEEE International Symposium on Information Theory Oezguer, A., Johari, R., Tse, D., Leveque, O. IEEE. 2008: 186–190

    View details for Web of Science ID 000260364400038

  • Local myopic dynamics in network formation games. Arcaute, E., Johari, R., Mannor, S. 2008
  • Peer-assisted content distribution with prices. Aperjis, C., Freedman, M., J., Johari, R. 2008
  • Oblivious equilibrium for general stochastic games with unbounded costs. Adlakha, S., Johari, R., Weintraub, G., Y., Goldsmith , A. 2008
  • Oblivious equilibrium for general stochastic games with concave costs. Adlakha, S., Johari, R., Weintraub, G., Y., Goldsmith , A. 2008
  • A comparison of bilateral and multilateral exchanges for peer-assisted content distribution. Aperjis, C., Freedman, M., J., Johari, R. 2008
  • Prices are right: aligning incentives for peer-assisted content distribution. Freedman, M., J., Aperjis, C., Johari, R. 2008
  • A comparison of bilateral and multilateral exchanges for peer-assisted content distribution. Aperjis, C., Freedman, M., J., Johari, R. 2008
  • Local Dynamics for Network Formation Games 46th Annual Allerton Conference on Communication, Control and Computing Arcaute, E., Johari, R., Mannor, S. IEEE. 2008: 937–938

    View details for Web of Science ID 000268229600132

  • Local Two-Stage Myopic Dynamics for Network Formation Games 4th International Workshop on Internet and Network Economics Arcaute, E., Johari, R., Mannor, S. SPRINGER-VERLAG BERLIN. 2008: 263–277

    View details for Web of Science ID 000262046200024

  • Oblivious Equilibrium for Stochastic Games with Concave Utility 46th Annual Allerton Conference on Communication, Control and Computing Adlakha, S., Johari, R., Weintraub, G., Goldsmith, A. IEEE. 2008: 1304–1308

    View details for Web of Science ID 000268229600185

  • Oblivious Equilibrium for Large-Scale Stochastic Games with Unbounded Costs 47th IEEE Conference on Decision and Control Adlakha, S., Johari, R., Weintraub, G., Goldsmith, A. IEEE. 2008: 5531–5538

    View details for Web of Science ID 000307311605110

  • Implications of autonomy for the expressiveness of policy routing IEEE-ACM TRANSACTIONS ON NETWORKING Feamster, N., Johari, R., Balakrishnan, H. 2007; 15 (6): 1266-1279

    View details for DOI 10.1109/TNET.2007.896531

    View details for Web of Science ID 000252125200005

  • Partially optimal routing 40th Annual Conference on Information Sciences and Systems (CISS) Acemoglu, D., Johari, R., Ozdaglar, A. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2007: 1148–60

    View details for DOI 10.1109/JSAC.2007.070809

    View details for Web of Science ID 000248352300009

  • Network formation: Bilateral contracting and myopic dynamics 3rd International Workshop on Internet and Network Economics Arcaute, E., Johari, R., Mannor, S. SPRINGER-VERLAG BERLIN. 2007: 191–207

    View details for Web of Science ID 000252182500020

  • Efficiency loss and the design of scalable resource allocation mechanisms. Algorithmic Game Theory Johari , R. edited by Nisan, N., Roughgarden, T., Tardos,  E. Cambridge University Press: Cambridge, United Kingdom.. 2007: 543–567
  • Revenue management for content delivery. Shakkottai, S., Johari, R. 2007
  • Network formation: bilateral contracting and myopic dynamics. Arcaute, E., Johari, R., Mannor, S. 2007
  • Oblivious equilibrium for general stochastic games with many players. Abhishek, V., Adlakha, S., Johari, R., Weintraub, G., Y. 2007
  • Dynamics and stability in network formation games with bilateral contracts 46th IEEE Conference on Decision and Control Arcaute, E., Dallal, E., Johari, R., Mannor, S. IEEE. 2007: 5871–5878

    View details for Web of Science ID 000255181703134

  • A contract-based model for directed network formation GAMES AND ECONOMIC BEHAVIOR Johari, R., Mannor, S., Tsitsiklis, J. N. 2006; 56 (2): 201-224

    View details for DOI 10.1016/j.geb.2005.08.010

    View details for Web of Science ID 000238585500001

  • A scalable network resource allocation mechanism with bounded efficiency loss IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS Johari, R., Tsitsikils, J. N. 2006; 24 (5): 992-999

    View details for DOI 10.1109/JSAC.2006.872880

    View details for Web of Science ID 000237401600006

  • Paradoxes of traffic engineering with partially optimal routing 40th Annual Conference on Information Sciences and Systems (CISS) Acemoglu, D., Johari, R., Ozdaglar, A. IEEE. 2006: 661–667

    View details for Web of Science ID 000244721800125

  • Positive externalities and optimal scale. Kumar, S., Johari, R. 2006
  • A peer-to-peer system as an exchange economy. Aperjis, C., Johari, R. 2006
  • Efficiency-loss in a network resource allocation game: The case of elastic supply IEEE TRANSACTIONS ON AUTOMATIC CONTROL Johari, R., Mannor, S., Tsitsiklis, J. N. 2005; 50 (11): 1712-1724

    View details for DOI 10.1109/TAC.2005.858687

    View details for Web of Science ID 000233442700006

  • Implications of autonomy for the expressiveness of policy routing SIGCOMM/ACM Conference on Computer Communications Feamster, N., Johari, R., Balakrishnan, H. ASSOC COMPUTING MACHINERY. 2005: 25–36

    View details for Web of Science ID 000233120000004

  • A game theoretic view of efficiency loss in resource allocation Symposium on Systems, Control, and Networks Johari, R., Tsitsiklis, J. N. BIRKHAUSER BOSTON. 2005: 203–223

    View details for Web of Science ID 000231525400012

  • Communication requirements of VCG-like mechanisms in convex environments. Johari, R., Tsitsiklis, J., N. 2005
  • Efficiency loss in a network resource allocation game: the case of elastic supply. IEEE Transactions on Automatic Control Johari, R., Mannor, S., Tsitsiklis, J., N. 2005; 11 (50): 1712-1724
  • Efficiency loss in a network resource allocation game MATHEMATICS OF OPERATIONS RESEARCH Johari, R., Tsitsiklis, J. N. 2004; 29 (3): 407-435

    View details for Web of Science ID 000224311900001

  • Routing and peering in a competitive Internet 43rd IEEE Conference on Decision and Control Johari, R., Tsitsiklis, J. N. IEEE. 2004: 1556–1561

    View details for Web of Science ID 000226745601073

  • Efficiency loss in a resource allocation game: A single link in elastic supply 43rd IEEE Conference on Decision and Control Johari, R., Mannor, S., Tsitsiklis, J. N. IEEE. 2004: 4679–4683

    View details for Web of Science ID 000226745604028

  • Network resource allocation and a congestion game: the single link case. Johari, R., Tsitsiklis, J., N. 2003
  • End-to-end congestion control for the Internet: delays and stability. IEEE/ACM Transactions on Networking Johari, R., Tan, D., K.H. 2001; 6 (9): 818-832