We approach the size distribution of business firms by proposing an analogy of the firms’ ranking with a boson gas, identifying the annual revenue of the firms with energy. We found that Bose–Einstein statistics fits very well to the empirical cumulative distribution function for the...

We analyze company size distribution for developing countries using the framework proposed by Ramsden and Kiss-Haypál [Physica A 277 (2000) 220]. Although this distribution does not fit developing countries data as good as it does to developed ones, the parameters of the distribution (θ and...

Using the Sznajd-Weron model as a starting point, we analyzed the effect on the statistical properties of this model under changes in the connectivity of the network and under the introduction of memory to the units, as well as by introducing a communication error that influences the way a unit...

We apply the cross sample entropy method to geoelectrical time series collected from independent channels (North–South and East–West directions) monitored at two sites located in Mexico, to assess the presence of pattern synchrony between the signals, particularly in the proximity of...

In the present work, we perform the complete state counting for Gentile's approach to the generalized Pauli exclusion principle (GPEP), which has been lacking in the literature. We count the total number of ways to allocate n identical particles occupying a group of g states with up to q...

Evaluating complex fluctuations in geoelectric time series is an important task not only for earthquake prediction but also for understanding complex processes related to earthquake preparation. Previous studies have reported alterations, such as the emergence of correlated dynamics in...