Sleslie, to answer to your question about internal markets:
look at the examples backwards: when there is no internal market, it means that vast sections of the population are de facto excluded from economic activity: no jobs, no consumption, no growth... What Argentina (and other countries like South Korea, Malaysia, Brazil, and even the US in the 19th century) did was bring these excluded people into the economy to make it grow. This does not mean no imports/exports, it means optimising the internal population by boosting per capital wealth. Examples in the 10 million population range include Hong Kong, Sweden, Austria...
And yes 12% isn't small potatoes but it is not even one sixth of what the rest of the recovery was, so why do the commodities get all the sexy press?
And in response to Johnny regarding the Corralito:
if you read the links in the OP, both camps of economists address the subsequent Greek corralito. The pro-Grexit camp says it will be painful just as in Argentina, but as with Arg it will be short and lead to vast growth. The anti-Grexit camp says a Greek corralito would be much messier, since whereas Argentines had dollars that were immediately converted into pesos, there are no Drachmas. So for example, what do you do with contracts denominated in Euros? Messy.
Furthermore the first phase of a Corralito would be capital controls, but at this point they are inevitable in Greece. The ECB has already imposed effective capital controls by cutting Greek banks' liquidity (thanks Frau Merkl!), and no country has ever come out of such a mess without capital controls (Cyprus in the worst case, Malaysia in the best case). So in a sense the corralito has already begun in slow motion.
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