Hyejin Youn

Assistant Professor
Kellogg School of Management
Northwestern University
Evanston, IL 60208 USA

RSA Fellow (FRSA)
Royal Society of Arts
London, UK

External Fellow
London Mathematical Laboratory
London, UK

Email: hyejin.youn [at] kellogg [dot] northwestern [dot] edu
Curriculum Vitae: cv.pdf

Job opening
I am looking for two exceptional candidates to fill two open postdoctoral positions in complex systems, who will be working at The Northwestern Institute on Complex Systems (NICO) and Kellogg School of Management at Northwestern University. Appliation will be received as a form of email with subject heading “(your name) – Postdoc Application”, containing: 1) cover letter, describing your interest in and qualifications for this position; 2) curriculum vitae (including publications list); 3) two or three letters of recommendation emailed separately by the writers; 4) a link to the candidate’s professional webpage (if applicable). The review will start in Nov 20th until the positions are filled.

I am an assistant professor at Kellogg School of Management at Northwestern University, and Northwestern Institute on Complex Systems (NICO). I was a research fellow at Santa Fe Institute and Harvard Kennedy School, and visiting scientist at MIT Media Lab. Before that, I was a senior research fellow at Mathematical Institute at University of Oxford , and Institute for New Economic Thinking at the Oxford Martin School; and ran a National Science Foundation grant (USA) to study Technological Change from the Map of Capabilities with Aaron Cluaset, the University of Colorado at Boulder [link]. My PhD is in Statistical Physics at KAIST.

My research aims to develop a mathematical and computational framework to understand complex systems. These include (see the detail here):

Please visit my publication page or Google scholar profile for the more details on my publications.


  • Morphology of travel routes and the organization of cities, appears in Nature Communications 8:2229 [link]

  • Analysing Physics text books (Griffith, Hewitt, and Knight), and Oxford dictionary to see how concepts (terminologies) appear in reading stream Dynamic burstiness of word-occurrence and network modularity in textbook systems, Physica A 487:103-110 [link]

  • Demographics and Democracy: A Network Analysis of Mongolians’ Political Cognition , appears in Journal of Anthropological Research 73:617-646 [link].

  • My first anthropology paper, the ecological and evolutionary energetics of hunter-gatherer residential mobility, appears in Evolutionary Anthropology 25:124–132 [link], and is featured in [Phys.Org].

  • Caucus meeting at AOM (Academy of Management), "Building an Integrated Framework for Innovation, Organizations and Society" is on Aug 8, 2016 at Anaheim Marriott in Platinum Ballroom 5. The detail is found in [link]

  • Our paper, Technological novelty profile and invention’s future impact, appears in EPJ Data Science 2016 5:8 [link], and is featured in [SpringerOpen blog].

  • Our paper, Scaling and universality in urban economic diversification, Journal of The Royal Society Interface 13:20150937 [link]: see Media covers [Science of Cities in Next City], and [Forbes]

  • Satellite Workshop at NetSci16 on "Networks and Technology Evolution​​" is orgaized on 30 May, 2016. We call for contribution talks. The detail is found in [link]

  • Quartz made a really cool movie on our paper.

  • An interactive webpage for a linguistic semantic project is now up and running. Have fun with learning languages from African to Eurasian, to American, and to Oceanian [link]
  • Our paper, On the universal structure of human lexical semantics, appears in Proc Natl Acad Sci [link]: see Media Coverage [Phys.org], [Santa Fe Institute news], [Mathematical Institute news, University of Oxford], [ PNAS highlights], [QUARTZ video clip], [Nature], [과학동아], and [National Geography Blog].

  • Our paper, Invention as a combinatorial process: Evidence from U.S. Patents appears in Royal Soc. Interface 12 106 [link]: see Media coverage [the Economist], [Santa Fe Institute news], [GIZMODO], [MIT Technology Review], and [Nature Physics]

  • Satellite Workshop at CCS15 on "Quantitative methods for predicting, explaining and describing technological change" is orgaized on September, 2015. The detail is found in [link]

  • Workshop on "Theory and practice of innovation: Different perspectives under the same name"
    is orgaized on Feb 27th, 2015. The detail is found in [link]

  • NSF grant to study Technological Change from the Map of Capabilities with Aaron Cluaset, the University of Colorado at Boulder [link]

  • Journal Club on "Innovation: technological change and economic growth"
    is being held at 13.00 on every Thursday. The detail is found in [link]

  • Lecture on Science of Cities
    H. Youn
    Towards the Scientific Theory of Cities at Gresham College (2014). [Video Clip]