What libertarians seem to forget imo is that any group of more than 1 person constitutes a "society" or polis etc. Laws are part of explicit and informal "social contract" between members of a society/group/polis (politics comes from polis). The economy is also a dimension of a social contract when families stopped self producing everything and started trading w/ each other. Intra-polis trade between families created need for prices (even in barter trade) and thus money. But in basic intra-polis/village trade no one was really left "jobless", was mostly specialization benefits.
I am sure economic theories/models (be they of 5000 BCE or 2012 CE) worked much better in 5000 BCE! In a way, extra-polis trade (see eg explorers to "new worlds") disrupted the social/econ contracts/balances of de facto closed societies. Not to mention that lack of competition rules probably had created warlords and other oligarchs inside closed systems/cities/villages.
Why do I say probably? Cos I was not there to see for myself, at 5000 or something BCE. Were you?
Opening up and allowing trade between families in a polis came as part of social and legal contracts/laws/balance. But but inter-polis (ie inter-national) trade/exchanges were not coupled by common laws and a social/econ contract! Were they? No WTO etc.
That is still in 2012 the underpinning element of trade and other inter-state exchanges of all kinds: They fall outside national scopes. Of course so many are in favor of free trade without unification, it sort of allows them to have the cake and eat it too!! Think about it!
Trade between entities not bound together the way a country is bound together is sort of having a cake and eating it too! Sort of "dumping".
That is also part why most economic models/theories have failed. They deal in principle and de facto with closed systems. Look at GATT and the WTO: It regulates basically trade but fails to deal with many other dimensions thus systemically unbalanced. What I am saying is that trade, investment, migration and other flows need to happen within a "system". Is such system compatible with any sub-global/earth sovereignties? In other words is even trade compatible with national sovereignty since separate social contracts?
Can comparative advantage really exist in a league (competition) between 200+ national economies where there is no actual "league"? Does this mean that the world needs to become a federal political entity for "fair" trade to exist? Is it otherwise an "animal farm"? Can national social contracts exist at the same time as free trade exists? Much like libertarians who want to exploit imo the benefits of a society (econ is a social activity) w/o the "costs" of a society ... Or look at how some in the UK want to free-ride Europe and the world w/o any associated social contracts or rules! Pick and choose only!
But in any case, imo trade was, back when it started in human history, the first opener for more open systems. But that was thousands of years ago. Not in 2012! The systemics to work need more than trade flows. Or less.
The idea that one can be a sovereign state (city, national, etc) and still engage even in trade with others is imo challenged in this era! It worked in 1200 BCE or 1400 CE or even 1949 (GATT era) etc but not in the systemics and dynamics of 2000s!
Thus it should come as no real surprise that European and US and world systemics and dynamics are out of control in the 2000s and 2012 and that globalization, regionalization (EU, UNASUR, ASEAN), nationalization (UK), localisation/separatist dynamics do co-exist in 2012! Because systemically speaking the system is out of whack! Freedom of trade and investment cannot work systemically for long w/o full system integration.
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