npsm logo

Download original image
Fig. 1. Visualization of European football transfers in the summer of 2014. A total of 436 transfers (arrows) among 114 teams (circles) are represented. The size of a circle and the width of an arrow are proportional to the strength of a team and the weight of a transfer, respectively. The location of a team refers to the geographical position of its hometown. As several teams have the same hometown (e.g., teams in London and Madrid), their locations are slightly shifted in the figure.
New Physics: Sae Mulli 2015;65:402~409