Throw a boundary round any geography or population and you can calculate a trade imbalances: they are inevitable. And probably don't really matter much.
All evidence to the contrary.
Evidence to the contrary of which bit? Either way, lets try another way:
A common settlement system without borders, or a indeed even a physical manifestation, has no ability to precipitate an imbalance because it does not exist
My point is the imbalance will still exist. The obvious and well known example is the Eurozone where there is a common settlement without borders but imbalances remain between the nations, say between Germany and Greece. The imbalance exist within countries too, i'm mindful of the north/south divide in the UK, and most (all?) countries have their rich and their poor regions, it's just not often discussed. Bitcoin would only provide a different currency in which to account for and measure the imbalance. Country A would export
BTC1Billion of goods and services to country B, while importing
BTC700Millon from the same.