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Takashi Hashimoto

Takashi Hashimoto

Research Category

Complex systems, evolutionary linguistics, cognitive science

Area of Interest

Rule dynamics; the dynamics of institutional formation, maintenance, and change; origin and evolution of language

Recent Thoughts

Creating complex systems, playing by the system’s rules, and then changing those rules are characteristics that may be unique to human beings, social creatures with significant adaptive capability. Recently I have been thinking that my future research will focus on the possibility of a unified approach to thinking about the evolution of those human characteristics and the institutions created on the basis of these characteristics. The concept I believe will be a key part of this approach is rule dynamics, which states, “actions that obey the rules change the rules themselves.” This research will provide new perspectives on a variety of dynamics, from aspects of cultural evolution—including institutional formation, maintenance, and change—to transformations in biological activities like evolution and development. Recently it seems to me that the characteristics of “public spirit” and “curiosity” may be pseudo-rational contrivances that human beings acquired as a result of evolution. I suppose my dream for the time being is to use rule dynamics analysis based on these two qualities to portray the dynamics of the origins and evolution of institutions and languages.


  • Takashi Hashimoto, Evolutionary linguistics and evolutionary economics, Evolutionary and Institutional Economics Review ,3(1), 27-46, (2006)
  • Takashi Hashimoto, The constructive approach to the dynamic view of language, In: Simulating the Evolution of Language, Angelo Cangelosi and Domenico Parisi (Eds.), Springer Verlag, pp.307-324 (2001)

Recent/Ongoing Works

  • Takashi Hashimoto, et al., Evolutionary constructive approach for studying dynamic complex systems, To appear in: Recent Advances in Modelling and Simulation, Aleksandar Lazinica (Ed.), pp. 111-136, I-Tech Books, 2008
  • Takashi Hashimoto and Masaya Nakatsuka, Cognitive modeling of grammaticalization – what cognitive tendencies do bring unidirectional meaning change? ,in preparation

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Japan Advanced Institute of Science and Technology