A) Intro: 

You might be asking yourself..

WHY thinking of detecting 'closed circuits' within national and international Economies regarding cross clearable commercial debts bewteen companies, in order for those 'closed circuits' represented by reciprocal or circular credit-debt chains, to be signalled to the parties involved (creditors-debtors) and for them to be able to eliminate corresponding credits-debts ?

WHO would gain what ? 

Especially during periods of crisis (such as the current Euro-crisis, for instance), and credit crunch, this would prevent situations in which due to lack of liquidity, one or more of the links of the chain would have not been able to correctly perform their payment duties, therefore possibly leading to lack of performance by the subsequent links of the chain as well, in a 'domino effect' seriously (but unnecessarily) affecting Economies.