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| A network of interbank loan credit, the color and size refers to the size of the bank | A network of correlation in stock return price over a period of 10 years at NYSE. Different colors refer to different sectors. | Network of ownership in the Italian stockmarket. Green are investors or company not traded in the market, red the companies quoted. | The previous network when only red vertices are considered. |
| PRE 74, 066112 (2006) | PRE 68, 046130 (2003) | Phys A 350, 491 (2005) | Phys A 350, 491 (2005) |