This paper provides experimental evidence on the economic determinants of intermediation networks by considering two pricing rules—respectively, criticality and betweenness—and three group sizes of subjects—10, 50, and 100 subjects. We find that when brokerage benefits accrue only to traders who lie on all paths of intermediation, stable networks involve interconnected cycles, and trading path lengths grow while linking and payoff inequality remain modest as the number of traders grows. By contrast, when brokerage benefits are equally distributed among traders on the shortest paths, stable networks contain a few hubs that provide the vast majority of links, and trading path lengths remain unchanged while linking and payoff inequality explode as the number of traders grows.

More from our Archive

• DOI: 10.1126/science.adf5872 2023

  Interface engineering for high-performance, triple-halide perovskite–silicon tandem solar cells

  Silvia Mariotti, Eike Köhnen, Florian Scheler, Kári Sveinbjörnsson, Lea Zimmermann, Manuel Piot, Fengjiu Yang, Bor Li, Jonathan Warby, Artem Musiienko, Dorothee Menzel, Felix Lang, Sebastian Keßler, Igal Levine, Daniele Mantione, Amran Al-Ashouri, Marlene S. Härtel, Ke Xu, Alexandros Cruz, Jona Kurpiers, Philipp Wagner, Hans Köbler, Jinzhao Li, Artiom Magomedov, David Mecerreyes, Eva Unger, Antonio Abate, Martin Stolterfoht, Bernd Stannowski, Rutger Schlatmann, Lars Korte, Steve Albrecht

• DOI: 10.1126/science.adg0091 2023

  Interface passivation for 31.25%-efficient perovskite/silicon tandem solar cells

  Xin Yu Chin, Deniz Turkay, Julian A. Steele, Saba Tabean, Santhana Eswara, Mounir Mensi, Peter Fiala, Christian M. Wolff, Adriana Paracchino, Kerem Artuk, Daniel Jacobs, Quentin Guesnay, Florent Sahli, Gaëlle Andreatta, Mathieu Boccard, Quentin Jeangros, Christophe Ballif

• DOI: 10.1126/science.adh2586 2023

  Experimental evidence on the productivity effects of generative artificial intelligence

  Shakked Noy, Whitney Zhang

• DOI: 10.1126/science.adg4084 2023

  An improved bound on the electron’s electric dipole moment

  Tanya S. Roussy, Luke Caldwell, Trevor Wright, William B. Cairncross, Yuval Shagam, Kia Boon Ng, Noah Schlossberger, Sun Yool Park, Anzhou Wang, Jun Ye, Eric A. Cornell

• DOI: 10.1126/science.adi4107 2023

  Engineering ligand reactivity enables high-temperature operation of stable perovskite solar cells

  So Min Park, Mingyang Wei, Jian Xu, Harindi R. Atapattu, Felix T. Eickemeyer, Kasra Darabi, Luke Grater, Yi Yang, Cheng Liu, Sam Teale, Bin Chen, Hao Chen, Tonghui Wang, Lewei Zeng, Aidan Maxwell, Zaiwei Wang, Keerthan R. Rao, Zhuoyun Cai, Shaik M. Zakeeruddin, Jonathan T. Pham, Chad M. Risko, Aram Amassian, Mercouri G. Kanatzidis, Kenneth R. Graham, Michael Grätzel, Edward H. Sargent

• DOI: 10.1126/science.add7138 2023

  A lithium superionic conductor for millimeter-thick battery electrode

  Yuxiang Li, Subin Song, Hanseul Kim, Kuniharu Nomoto, Hanvin Kim, Xueying Sun, Satoshi Hori, Kota Suzuki, Naoki Matsui, Masaaki Hirayama, Teruyasu Mizoguchi, Takashi Saito, Takashi Kamiyama, Ryoji Kanno

• DOI: 10.1126/science.adc9818 2023

  Observation of high-energy neutrinos from the Galactic plane

  , R. Abbasi, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, J. M. Alameddine, A. A. Alves, N. M. Amin, K. Andeen, T. Anderson, G. Anton, C. Argüelles, Y. Ashida, S. Athanasiadou, S. Axani, X. Bai, A. Balagopal V., S. W. Barwick, V. Basu, S. Baur, R. Bay, J. J. Beatty, K.-H. Becker, J. Becker Tjus, J. Beise, C. Bellenghi, S. Benda, S. BenZvi, D. Berley, E. Bernardini, D. Z. Besson, G. Binder, D. Bindig, E. Blaufuss, S. Blot, M. Boddenberg, F. Bontempo, J. Y. Book, J. Borowka, S. Böser, O. Botner, J. Böttcher, E. Bourbeau, F. Bradascio, J. Braun, B. Brinson, S. Bron, J. Brostean-Kaiser, R. T. Burley, R. S. Busse, M. A. Campana, E. G. Carnie-Bronca, C. Chen, Z. Chen, D. Chirkin, K. Choi, B. A. Clark, K. Clark, L. Classen, A. Coleman, G. H. Collin, A. Connolly, J. M. Conrad, P. Coppin, P. Correa, D. F. Cowen, R. Cross, C. Dappen, P. Dave, C. De Clercq, J. J. DeLaunay, D. Delgado López, H. Dembinski, K. Deoskar, A. Desai, P. Desiati, K. D. de Vries, G. de Wasseige, T. DeYoung, A. Diaz, J. C. Díaz-Vélez, M. Dittmer, H. Dujmovic, M. Dunkman, M. A. DuVernois, T. Ehrhardt, P. Eller, R. Engel, H. Erpenbeck, J. Evans, P. A. Evenson, K. L. Fan, A. R. Fazely, A. Fedynitch, N. Feigl, S. Fiedlschuster, A. T. Fienberg, C. Finley, L. Fischer, D. Fox, A. Franckowiak, E. Friedman, A. Fritz, P. Fürst, T. K. Gaisser, J. Gallagher, E. Ganster, A. Garcia, S. Garrappa, L. Gerhardt, A. Ghadimi, C. Glaser, T. Glauch, T. Glüsenkamp, N. Goehlke, A. Goldschmidt, J. G. Gonzalez, S. Goswami, D. Grant, T. Grégoire, S. Griswold, C. Günther, P. Gutjahr, C. Haack, A. Hallgren, R. Halliday, L. Halve, F. Halzen, M. Ha Minh, K. Hanson, J. Hardin, A. A. Harnisch, A. Haungs, K. Helbing, F. Henningsen, E. C. Hettinger, S. Hickford, J. Hignight, C. Hill, G. C. Hill, K. D. Hoffman, K. Hoshina, W. Hou, F. Huang, M. Huber, T. Huber, K. Hultqvist, M. Hünnefeld, R. Hussain, K. Hymon, S. In, N. Iovine, A. Ishihara, M. Jansson, G. S. Japaridze, M. Jeong, M. Jin, B. J. P. Jones, D. Kang, W. Kang, X. Kang, A. Kappes, D. Kappesser, L. Kardum, T. Karg, M. Karl, A. Karle, U. Katz, M. Kauer, M. Kellermann, J. L. Kelley, A. Kheirandish, K. Kin, J. Kiryluk, S. R. Klein, A. Kochocki, R. Koirala, H. Kolanoski, T. Kontrimas, L. Köpke, C. Kopper, S. Kopper, D. J. Koskinen, P. Koundal, M. Kovacevich, M. Kowalski, T. Kozynets, E. Krupczak, E. Kun, N. Kurahashi, N. Lad, C. Lagunas Gualda, J. L. Lanfranchi, M. J. Larson, F. Lauber, J. P. Lazar, J. W. Lee, K. Leonard, A. Leszczyńska, Y. Li, M. Lincetto, Q. R. Liu, M. Liubarska, E. Lohfink, C. J. Lozano Mariscal, L. Lu, F. Lucarelli, A. Ludwig, W. Luszczak, Y. Lyu, W. Y. Ma, J. Madsen, K. B. M. Mahn, Y. Makino, S. Mancina, I. C. Mariş, I. Martinez-Soler, R. Maruyama, S. McCarthy, T. McElroy, F. McNally, J. V. Mead, K. Meagher, S. Mechbal, A. Medina, M. Meier, S. Meighen-Berger, Y. Merckx, J. Micallef, D. Mockler, T. Montaruli, R. W. Moore, K. Morik, R. Morse, M. Moulai, T. Mukherjee, R. Naab, R. Nagai, R. Nahnhauer, U. Naumann, J. Necker, L. V. Nguyen, H. Niederhausen, M. U. Nisa, S. C. Nowicki, D. Nygren, A. Obertacke Pollmann, M. Oehler, B. Oeyen, A. Olivas, E. O'Sullivan, H. Pandya, D. V. Pankova, N. Park, G. K. Parker, E. N. Paudel, L. Paul, C. Pérez de los Heros, L. Peters, J. Peterson, S. Philippen, S. Pieper, A. Pizzuto, M. Plum, Y. Popovych, A. Porcelli, M. Prado Rodriguez, B. Pries, G. T. Przybylski, C. Raab, J. Rack-Helleis, A. Raissi, M. Rameez, K. Rawlins, I. C. Rea, Z. Rechav, A. Rehman, P. Reichherzer, R. Reimann, G. Renzi, E. Resconi, S. Reusch, W. Rhode, M. Richman, B. Riedel, E. J. Roberts, S. Robertson, G. Roellinghoff, M. Rongen, C. Rott, T. Ruhe, D. Ryckbosch, D. Rysewyk Cantu, I. Safa, J. Saffer, D. Salazar-Gallegos, P. Sampathkumar, S. E. Sanchez Herrera, A. Sandrock, M. Santander, S. Sarkar, S. Sarkar, K. Satalecka, M. Schaufel, H. Schieler, S. Schindler, T. Schmidt, A. Schneider, J. Schneider, F. G. Schröder, L. Schumacher, G. Schwefer, S. Sclafani, D. Seckel, S. Seunarine, A. Sharma, S. Shefali, N. Shimizu, M. Silva, B. Skrzypek, B. Smithers, R. Snihur, J. Soedingrekso, A. Sogaard, D. Soldin, C. Spannfellner, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, R. Stein, J. Stettner, T. Stezelberger, B. Stokstad, T. Stürwald, T. Stuttard, G. W. Sullivan, I. Taboada, S. Ter-Antonyan, J. Thwaites, S. Tilav, F. Tischbein, K. Tollefson, C. Tönnis, S. Toscano, D. Tosi, A. Trettin, M. Tselengidou, C. F. Tung, A. Turcati, R. Turcotte, C. F. Turley, J. P. Twagirayezu, B. Ty, M. A. Unland Elorrieta, N. Valtonen-Mattila, J. Vandenbroucke, N. van Eijndhoven, D. Vannerom, J. van Santen, J. Veitch-Michaelis, S. Verpoest, C. Walck, W. Wang, T. B. Watson, C. Weaver, P. Weigel, A. Weindl, M. J. Weiss, J. Weldert, C. Wendt, J. Werthebach, M. Weyrauch, N. Whitehorn, C. H. Wiebusch, N. Willey, D. R. Williams, M. Wolf, G. Wrede, J. Wulff, X. W. Xu, J. P. Yanez, E. Yildizci, S. Yoshida, S. Yu, T. Yuan, Z. Zhang, P. Zhelnin

• DOI: 10.1126/science.adg4521 2023

  Oncogene-like addiction to aneuploidy in human cancers

  Vishruth Girish, Asad A. Lakhani, Sarah L. Thompson, Christine M. Scaduto, Leanne M. Brown, Ryan A. Hagenson, Erin L. Sausville, Brianna E. Mendelson, Pranav K. Kandikuppa, Devon A. Lukow, Monet Lou Yuan, Eric C. Stevens, Sophia N. Lee, Klaske M. Schukken, Saron M. Akalu, Anand Vasudevan, Charles Zou, Barbora Salovska, Wenxue Li, Joan C. Smith, Alison M. Taylor, Robert A. Martienssen, Yansheng Liu, Ruping Sun, Jason M. Sheltzer

• DOI: 10.1126/science.adg3781 2023

  Emissions and energy impacts of the Inflation Reduction Act

  John Bistline, Geoffrey Blanford, Maxwell Brown, Dallas Burtraw, Maya Domeshek, Jamil Farbes, Allen Fawcett, Anne Hamilton, Jesse Jenkins, Ryan Jones, Ben King, Hannah Kolus, John Larsen, Amanda Levin, Megan Mahajan, Cara Marcy, Erin Mayfield, James McFarland, Haewon McJeon, Robbie Orvis, Neha Patankar, Kevin Rennert, Christopher Roney, Nicholas Roy, Greg Schivley, Daniel Steinberg, Nadejda Victor, Shelley Wenzel, John Weyant, Ryan Wiser, Mei Yuan, Alicia Zhao

• DOI: 10.1126/science.adh1114 2023

  Leveraging artificial intelligence in the fight against infectious diseases

  Felix Wong, Cesar de la Fuente-Nunez, James J. Collins