It is a question that I have been asking myself for a while: at what point does it become economically rational for a country to leave the eurozone?
There are two things to consider. The first is whether the country’s banking system is viable in the presence of an imperfect banking union – one that will not share any risks in the foreseeable future. The second is whether public and private sector debts are sustainable, given the country’s present and expected future growth rates.
For Cyprus, the answers to both questions are no. The decision to bail in shareholders, bondholders and uninsured depositors would have been logical if the eurozone had a full banking union. There would be no bank run as all banks would be reinsured centrally.