Breaches of a debt contract are easy to spot and police, but a shareholder's claim can be eroded quite subtly.

ECONOMIST: Shares in emerging economies

In Asia, a combination of debt forgiveness, fast growth and restraint in government spending has helped the debt-to-GDP ratio contract sharply in almost every country since 2001.

ECONOMIST: The new problem with Asian sovereign debt��scarcity

This turned out to be a loan to Enron dressed up as an electricity contract, which had the effect of hiding the debt from Enron's investors.

ECONOMIST: But corruption in this state can be a bipartisan business

They say GDP and real wages could contract much faster than they expect, which would see the ratio of debt to GDP peaking at an almost incredible 208% of GDP.

BBC: Greece needs yet another bailout

While the European sovereign debt crisis has flown below the radar, the Eurozone continues to contract and, despite improvements, Italy and Spain are still stuck with stagnating economies.

FORBES: Move up http://i.forbesimg.com t Move down

Fellow striker Nacho Novo and left-back Stevie Smith, who are also both out of contract, indicated that they are likely to leave Ibrox and Smith hinted that the debt situation meant others could follow.

BBC: Manager Walter Smith no clearer on Ibrox future

Under the new rules, pre-approval offers by mail to anyone under 25 is no longer allowed, students--and anyone else under the age of 21--must prove they have sufficient income to pay off credit card debt they incur, have a parent or family member co-sign their credit card contract or be added as an authorized user on a parent's credit card rather than opening their own.

WSJ: Students Still Targets of Credit-Card Offers

Debt-relief companies also can't charge a consumer until there's a written contract in hand and at least one payment has been made to a creditor.

WSJ: Sorting Out Debt-Relief Promises