Announce and immediately impose capital controls
Impose immediate trade controls (because companies would otherwise falsify imports in order to get their money out)
Impose immediate border controls (to prevent a flight of cash)
Implement a bank holiday (to stop citizens from withdrawing their money and running before the devaluation) and - although this is somewhat hard to imagine - stamp every euro note in the country, converting it back to the national currency.
Announce a new exchange rate (presumably not floating at the beginning, given capital and exchange controls) so that trade could continue.
Decide how to deal with existing outstanding euro-denominated debt, which would probably entail a major government and private-sector debt restructuring (that is, default). This might be easier in the case of government debt, which tends to be governed by domestic law, in contrast to the debt of major corporations, which normally governed by UK law (but we would assume enactment of laws declaring a haircut here, as well).
Recapitalize the (insolvent) banks to make up for losses from defaults
Determine what to do with the non-bank financial sector, the stock and bond markets, and every company account and commercial contract in the country
Barroso levélben szólította fel Orbán Viktort
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