Greece and the Troika are engaged in a war of attrition. The player with the higher cost to staying IN vs conceding and dropping OUT is in a stronger position in a war of attrition.

Greece has capital controls, is about to renege on a payment to the IMF, faces an offer from the Troika that is impossible for the Greek government to get through Parliament and the offer consigns the Greeks to more austerity and economic stagnation. They have little to lose from staying IN.

The IMF does not face an existential crisis if it sticks to its guns. The EC suffers from staying IN if there is contagion but they have protected themselves.

So both sides have low costs to staying IN. They have to increases costs on the other side to persuade them to concede.

For the Troika, the strategy is straightforward: they can’t accede to the Greek request to extend the bailout for the referendum, give extra money to banks etc. This is basically what they are already doing.

For the Greeks, the strategy is more surreal: To inflict maximum cost of the Troika, Greece should default on its payments but remain in the Eurozone. Greece is cut off from international lenders anyway and the default will not have any incremental effect on their ability to borrow. With Greece insolvent, the ECB will be the key decision-maker. Do they keep on lending to Greece as they are still technically in the Eurozone? The German Finance Minister says this is the case (via Bloomberg):

German Finance Minister Wolfgang Schaeuble told lawmakers in Berlin that Greece would stay in the euro for the time being if Greek voters reject austerity in a referendum scheduled this week, according to three people present.

Schaeuble also said the European Central Bank would do what’s needed to protect the euro if Greeks voted against the bailout terms in the July 5 referendum

This is ideal for Greece. They keep the Euro and get the debt restructuring they want via default. And other countries in the Eurozone are infected by Greece being in the Euro. If Greece needs anything from the EC, this is an ideal threat point for them.

What if the ECB denies Greece credit? This state of affairs may need to be maintained by the Greek government issuing GrEuros as a medium of exchange. GrEuros can be used to pay the government as if they were Euros. GrEuros will not be accepted outside Greece by wary investors but they would trade internally in Greece. The GrEuro/Euro exchange rate will float. There is less risk of contagion here as GrEuros are not the same as Euros. Eventually GrEuros will become drachmas.

All these tactics will prolong the war of attrition. They will mask the bigger problem: How sustainable is the Eurozone with a monetary union but no political union?