344 citations · 462 across the 8 of their papers we have counts for
8 papers
A Generalized Preferential Attachment Model for Business Firms Growth Rates: II. Mathematical Treatment
S. V. Buldyrev, F. Pammolli, M. Riccaboni +4
We present a preferential attachment growth model to obtain the distribution of number of units in the classes which may represent business firms or other socio-economic…
A Generalized Preferential Attachment Model for Business Firms Growth Rates: I. Empirical Evidence
Fabio Pammolli, Dongfeng Fu, S. V. Buldyrev +4
We introduce a model of proportional growth to explain the distribution of business firm growth rates. The model predicts that is Laplace in the central part and depi…
Statistical Properties of Demand Fluctuation in the Financial Market
Kaushik Matia, Kazuko Yamasaki
We examine the out-of-equilibrium phase reported by Plerou {\it et. al.} in Nature, {\bf 421}, 130 (2003) using the data of the New York stock market (NYSE) between the years 2001…
Scaling Phenomena in the Growth Dynamics of Scientific Output
Kaushik Matia, Luis A. Nunes Amaral, Marc Luwel +2
We analyze a set of three databases at different levels of aggregation (i) a database of approximately publications of 247 countries in the period between 1980--2001. (ii) A…
A Generalized Preferential Attachment Model for Complex Systems
Kazuko Yamasaki, Kaushik Matia, Dongfeng Fu +4
Complex systems can be characterized by classes of equivalency of their elements defined according to system specific rules. We propose a generalized preferential attachment model…
Scale-Dependent Price Fluctuations for the Indian Stock Market
Kaushik Matia, Mukul Pal, H. Eugene Stanley +1
Classic studies of the probability density of price fluctuations for stocks and foreign exchanges of several highly developed economies have been interpreted using a {\it power…