As in any other Ponzi scheme, when the weakest link breaks, the chain breaks. The risk of such a break-up, applied to economics, is known as systemic risk or “correlation going to 1”. As the weakest link (i.e. the Euro zone) was coupled to the chain of the Fed, global systemic risk (or correlation) dropped. Apparently, those managing a correlation trade in IG9 (i.e. investment grade credit index series 9) for a well-known global bank did not understand this. But it would be misguided to conclude that the concept has now been understood, because there are too many analysts and fund managers who still interpret this coupling as a success at eliminating or decreasing tail risk. No such thing could be farther from the truth. What they call tail risk, namely the break-up of the Euro zone is not a “tail” risk. It is the logical consequence of the institutional structure of the European Monetary Union, which lacks fiscal union and a common balance sheet.... And to think that because corporations and banks in the Euro zone now have access to cheap US dollar funding, the recession will not bring defaults, will be a very costly mistake. Those potential defaults are not a tail risk either: If you tax a nation to death, destroy its capital markets, nourish its unemployment, condemn it to an expensive currency and give its corporations liquidity at stupidly low costs you can only expect one outcome: Defaults. The fact that they shall be addressed with even more US dollars coming from the Fed in no way justifies complacency.