If there is completely free global trade- with free migration of both labor and goods, then wages in high wage countries like the US and Europe should over time become closer and eventually the same as low wage countries. That can be due to higher wages there and/ or lower wages here. If our labor costs more than someplace else, that job will be moved to the lower priced location (or lower priced workers brought here). In exchange, goods can be produced more cheaply and should cost less to buy (though not all savings is passed along to the consumer or the worker).
This presupposes conditions that would not necessarily prevail. Much, most, or possibly all of the decision to be made in such regards would be based on NPV analysis. Wage costs would certainly be factored into a net present value calculation, but would not necessarily be the overriding element of consideration. Other factors might include the overall corporate strategy which might favor other choices than those suggested by NPV.
WRT wages and all else equal, the gap between the higher- and lower-wage areas would be critical in deciding whether to move. If wages are 20% lower in China than the USA, it would likely not be profitable to incur all the fixed costs of moving and establishing a new facility in a foreign land, especially when considering the costs of possibly shipping raw materials to China and the finished products, say, back to the USA. That is all terribly resource inefficient. I find it interesting to note how all these ingorant, whining sissy-men who go on about issues such as global warming and all that rot, say nothing about the relative material inefficiencies of shipping stuff all over the world and back to America for the sake of saving labor costs. But that's another discussion.
Large business decisions such as this are never as simple as your words would suggest. I've done work like this for clients and I can tell you that it is a really big deal in terms of the complexities. Labor cost alone is not a simple matter of how much you pay your people per hour. There are all manner of political considerations including taxation and many others. Then there are the questions of quality of the labor. It profits me nothing to send my work to China if the Chinese laborer turns out shit for which I much then refund customer cash or otherwise make them whole when my dog-pile products fail.
But for a while, assuming freedom in all markets and no slave-labor nations like China to be tolerated, there would be gross disparities between labor markets in terms of cost. Those gaps would close in time, assuming a leveling of global standards of living.... which is a really big assumption. But if is be the case, then there is the further issue of rising global demand for a given product or class thereof. Then you get into questions that make the marxists happy - those relating to the carrying capacity of the planet. Were tomorrow everyone endowed with the economic legs of the average American or European, we might see prices of everything surge through the roof, at least for a sizable period as all those "other people" began the drive to acquire like boss-Americans.
We've never had this sort of circumstance before - not in the
way we now have it. Nobody really knows what would happen.
Some have suggested (and data seems to support it) that our booming middle class following WW2 was a historical anomaly. Historically there hasn't been much middle class anywhere in the world.
"Anomaly" - what a wishy-washy, say nothing, utter bullshit term. It may never have happened before because the tyrants of yore would never have allowed it. To have a so-called "middle class" would have diminished Theire power and that would not be tolerated. So to say that there has not been a middle class is a big whoopdee-doo moment just as when she sees me in "the suit" and says "Oh my GOD... is that thing REAL??" Yes, and the sky is blue, water is wet, the sun is hot... blabity blah.
But to call it an "anomaly" is true shyte. Rather than "anomaly", perhaps it was rather the result of the market freedoms available to us in those days, long long past.
And who are these "some", anyway? Put them before me and I will put the smack of truth across their faces so that as they one day find themselves upon their deathbeds, watching satans little wingèd things circling above in wait, rather than dreading what is short to come, they will be hearkening back to that day I did my do in response to this utter and viciously befouling nonsense about the relative merits of freedom v. constriction. Whoever they are, may God strike them sterile that their stoopid-genes not be passed to yet another generation.
This shit ain't rocket surgery. If an idiot like myself can see what is clearly apparent, so should anyone else. They don't because they refuse it.