On revolutions

Armand M. Leroi*, Ben Lambert, Matthias Mauch, Marina Papadopoulou, Sophia Ananiadou, Staffan Lindberg, Patrik Lindenfors

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Sometimes the normal course of events is disrupted by a particularly swift and profound change. Historians have often referred to such changes as "revolutions", and, though they have identified many of them, they have rarely supported their claims with statistical evidence. Here, we present a method to identify revolutions based on a measure of multivariate rate of change called Foote novelty. We define revolutions as those periods of time when the value of this measure is, by a non-parametric test, shown to significantly exceed the background rate. Our method also identifies conservative periods when the rate of change is unusually low. We apply it to several quantitative data sets that capture long-term political, social and cultural changes and, in some of them, identify revolutions - both well known and not. Our method is general and can be applied to any phenomenon captured by multivariate time series data of sufficient quality.

Original languageEnglish
Article number4
Number of pages11
JournalPalgrave Communications
Volume6
Issue number1
DOIs
Publication statusPublished - 7-Jan-2020

Keywords

  • PUNCTUATED EQUILIBRIUM
  • PARADIGM SHIFT
  • EVOLUTION
  • ORIGIN
  • TEMPO
  • SPECIATION
  • JUMPS
  • RATES
  • MODE

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