After the crisis of 2007 the market of OTC derivatives was named as shadow banking system: http://en.wikipedia.org/wiki/Shadow_banking_system.
Offshore business have much more capital without taxing than OTC derivatives market before crisis. http://en.wikipedia.org/wiki/Offshore_financial_centre
This capital is not taxed in domestic countries and in countries where he works.
Is this the social and economic fair business?