There is obviously a strong prospect of a Grexit unless Greece gets its act in order and implements reform that will lead towards a more balanced budgetary system. However, there is no natural co-relation between the position adopted by Greece and countries such as Ireland, Spain & Portugal (France would be also on the periphery of this mix!). There have been significant concentrated efforts to do a deal with Greece which would keep them in the Eurozone. A debt W/O is not on a table as the assumption is that if Greece gets one the rest of us will be clamoring for similar treatment!
I would not see a Grexit as being the first Domino of many but more of a recognition of failure by the Eurozone in completing a proper due diligence on Greece when it was initially accepted. All external forecasters indicated that Greek figures were manipulated to get them into Eurozone and that they would struggle to meet the parameters of staying there. Perhaps the best solution for both Greece and the rest of the Eurozone countries is for a period of exit incorporating sufficient support provided that they work towards an acceptable budgetary balance over an agreed period. I.e. Yellow card rather than red!
I would not see a Grexit as being the first Domino of many but more of a recognition of failure by the Eurozone in completing a proper due diligence on Greece when it was initially accepted. All external forecasters indicated that Greek figures were manipulated to get them into Eurozone and that they would struggle to meet the parameters of staying there. Perhaps the best solution for both Greece and the rest of the Eurozone countries is for a period of exit incorporating sufficient support provided that they work towards an acceptable budgetary balance over an agreed period. I.e. Yellow card rather than red!