G7 country Gross Domestic Product (GDP) time correlations. A graph   network analysis
  The correlation between G7 countries has been analysed on the basis of Gross Domestic Product using different distance functions i.e. discrete, linear correlation and distribution distance. The distance matrics is analysed by various graph methods and the percolation threshold is calculated. The globalization process understood as increas of correlation has been observed. The applications of different distance function discussed. 
J. Mi\'skiewicz and M. Ausloos