Stochastic Modeling of Congress

  • Simkin M
  • Roychowdhury V
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Abstract

We analyze the dynamics of growth of the number of congressmen supporting the resolution HR1207 to audit the Federal Reserve. The plot of the total number of co-sponsors as a function of time is of "Devil's staircase" type. The distribution of the numbers of new co-sponsors joining during a particular day (step height) follows a power law. The distribution of the length of intervals between additions of new co-sponsors (step length) also follows a power law. We use a modification of Bak-Tang-Wiesenfeld sandpile model to simulate the dynamics of Congress and obtain a good agreement with the data.

Author-supplied keywords

  • collective dynamics
  • mathematical modeling
  • social influence

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Authors

  • Mikhail V. Simkin

  • Vwani P. Roychowdhury

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