ANETILAB - Agglomeration and Social Networks Research Lab

Team

Johannes Wachs

Associate Professor | Corvinus University of Budapest
Research Fellow | ANETI Lab at ELTE KRTK

BIO

Johannes studies social, technical, and economic networks and their effects on society using methods of data and network science. Recently he is especially interested in the social and economic impact of software, especially open source and AI. He has a PhD in Network Science from CEU, and before joining Corvinus University and the Institute of Economics he was a postdoc at RWTH Aachen and an assistant professor at the Vienna University of Economics and Business. He is also affiliated with the Complexity Science Hub Vienna.

PUBLICATIONS

  • S Juhász, J Wachs, J Kaminski, C Hidalgo
  • Research Policy
  • 2026
S Juhász, J Wachs, J Kaminski, C Hidalgo (2026) The software complexity of nations. Research Policy, 55(3): 105422.
  • S Daniotti, J Wachs, X Feng, F Neffke
  • Science
  • 2026
S Daniotti, J Wachs, X Feng, F Neffke (2026) Who is using AI to code? Global diffusion and impact of generative AI. Science, first release.
  • L Betti, L Gallo, J Wachs, F Battiston
  • Nature Communications
  • 2025
L Betti, L Gallo, J Wachs, F Battiston (2025) The dynamics of leadership and success in software development teams. Nature Communications, 16: 3956.
  • H Schuster, A Polleres, A Anjomshoaa, J Wachs
  • Scientific Reports
  • 2025
H Schuster, A Polleres, A Anjomshoaa, J Wachs (2025) Heat, health, and habitats: analyzing the intersecting risks of climate and demographic shifts in Austrian districts. Scientific Reports, 15: 22812.
  • J Koltai, L Lőrincz, J Wachs, K Takács
  • Applied Network Science
  • 2025
J Koltai, L Lőrincz, J Wachs, K Takács (2025) Do diversity and context collapse kill an online social network? Applied Network Science, 10: 26.
  • H Schuster, A Polleres, J Wachs
  • Transportation Research Part A: Policy and Practice
  • 2024
H Schuster, A Polleres, J Wachs (2024) Stress-testing road networks and access to medical care. Transportation Research Part A: Policy and Practice, 181: 104017.
  • W Schueller, J Wachs
  • Collective Intelligence
  • 2024
W Schueller, J Wachs (2024) Modeling interconnected social and technical risks in open source software ecosystems. Collective Intelligence, 3(1): 26339137241231912.
  • R M del Rio-Chanona, N Laurentsyeva, J Wachs
  • PNAS Nexus
  • 2024
R M del Rio-Chanona, N Laurentsyeva, J Wachs (2024) Large language models reduce public knowledge sharing on online Q&A platforms. PNAS Nexus, pgae400.
  • J Wachs
  • EPJ Data Science
  • 2023
J Wachs (2023) Digital traces of brain drain: developers during the Russian invasion of Ukraine. EPJ Data Science, 12: 14.
  • G Heiler, T Pham, J Korbel, J Wachs, S Thurner
  • Scientific Reports
  • 2023
G Heiler, T Pham, J Korbel, J Wachs, S Thurner (2023) A large-scale empirical investigation of specialization in criminal career. Scientific Reports, 13: 17160.
  • N Hagar, J Wachs, E-Á Horvát
  • New Media & Society
  • 2023
N Hagar, J Wachs, E Á Horvát (2023) Writer movements between news outlets reflect political polarization in media. New Media & Society, 25(8): 2034-2056.
  • A Polleres, R Pernisch, A Bonifati, D Dell'Aglio, D Dobriy, S Dumbrava, L Etcheverry, N Ferranti, K Hose, E Jiménez-Ruiz, M Lissandrini, A Scherp, R Tommasini, J Wachs
  • Transactions on Graph Data and Knowledge
  • 2023
A Polleres, R Pernisch, A Bonifati, D Dell'Aglio, D Dobriy, S Dumbrava, L Etcheverry, N Ferranti, K Hose, E Jiménez-Ruiz, M Lissandrini, A Scherp, R Tommasini, J Wachs (2023) How does knowledge evolve in open knowledge graphs? Transactions on Graph Data and Knowledge, 1(1): 11-1.
  • M Fazekas, R Ferrali, J Wachs
  • Journal of Public Administration Research and Theory
  • 2023
M Fazekas, R Ferrali, J Wachs (2023) Agency independence, campaign contributions, and favoritism in US federal government contracting. Journal of Public Administration Research and Theory, 33(2): 262-278.
  • T Gessler, G Tóth, J Wachs
  • Political Behavior
  • 2022
T Gessler, G Tóth, J Wachs (2022) No country for asylum seekers? How short-term exposure to refugees influences attitudes and voting behavior in hungary. Political Behavior, 44(4): 1813-1841.
  • S Sikdar, R Sachdeva, J Wachs, F Lemmerich, M Strohmaier
  • Frontiers in Big Data
  • 2022
S Sikdar, R Sachdeva, J Wachs, F Lemmerich, M Strohmaier (2022) The Effects of Gender Signals and Performance in Online Product Reviews. Frontiers in Big Data, 4: 771404.
  • W Schueller, J Wachs, V D Servedio, S Thurner, V Loreto
  • Scientific Data
  • 2022
W Schueller, J Wachs, V D Servedio, S Thurner, V Loreto (2022) Evolving collaboration, dependencies, and use in the rust open source software ecosystem. Scientific Data, 9(1): 703.
  • M Papoutsoglou, E S Rigas, G M Kapitsaki, L Angelis, J Wachs
  • Technological Forecasting and Social Change
  • 2022
M Papoutsoglou, E S Rigas, G M Kapitsaki, L Angelis, J Wachs (2022) Online labour market analytics for the green economy: The case of electric vehicles. Technological Forecasting and Social Change, 177: 121517.
  • J Wachs, M Nitecki, W Schueller, A Polleres
  • Technological Forecasting and Social Change
  • 2022
J Wachs, M Nitecki, W Schueller, A Polleres (2022) The geography of open source software: evidence from GitHub. Technological Forecasting and Social Change, 176: 121478.
  • G Tóth, J Wachs, R Di Clemente, Á Jakobi, B Ságvári, J Kertész, B Lengyel
  • Nature Communications
  • 2021
G Tóth, J Wachs, R Di Clemente, Á Jakobi, B Ságvári, J Kertész, B Lengyel (2021) Inequality is rising where social network segregation interacts with urban topology. Nature Communications, 12: 1143.
  • J Kertész, J Wachs
  • Nature Reviews Physics
  • 2021
J Kertész, J Wachs (2021) Complexity science approach to economic crime. Nature Reviews Physics, 3(2): 70-71.
  • J Wachs, B Vedres
  • Technological Forecasting and Social Change
  • 2021
J Wachs, B Vedres (2021) Does crowdfunding really foster innovation? Evidence from the board game industry. Technological Forecasting and Social Change, 168: 120747.
  • J Wachs, M Fazekas, J Kertész
  • International Journal of Data Science and Analytics
  • 2021
J Wachs, M Fazekas, J Kertész (2021) Corruption risk in contracting markets: a network science perspective. International Journal of Data Science and Analytics, 12: 45-60.
  • M Fazekas, J Wachs
  • Politics and Governance
  • 2020
M Fazekas, J Wachs (2020) Corruption and the network structure of public contracting markets across government change. Politics and Governance, 8(2): 153-166.
  • J Wachs, T Yasseri, B Lengyel, J Kertész
  • Royal Society Open Science
  • 2019
J Wachs, T Yasseri, B Lengyel, J Kertész (2019) Social capital predicts corruption risk in towns. Royal Society Open Science, 6(4): 182103.
  • J Wachs, J Kertész
  • Scientific Reports
  • 2019
J Wachs, J Kertész (2019) A network approach to cartel detection in public auction markets. Scientific Reports, 9(1): 10818.
  • A May, J Wachs, A Hannák
  • Empirical Software Engineering
  • 2019
A May, J Wachs, A Hannák (2019) Gender differences in participation and reward on Stack Overflow. Empirical Software Engineering, 24: 1997-2019.
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