With the spectre of a recession looming in the eurozone (and elsewhere), the policy question arises as to how much leeway do the fiscal authorities in the eurozone have to follow counter-cyclical fiscal policies aimed at providing some stimulus to the economy.

We argue that the various proposals aimed at stabilizing the Eurozone using financial engineering do not eliminate the inherent instability of the sovereign bond markets in a monetary union. During crises, this instability becomes systemic and no amount of financial engineering can stabilize an...