Re: @Tim Worstall - "The things that actually seem to work in making the poor richer."
> 6.88, -6.82.
RIght (pun not intended!), so whilst I am to the left of you, I'm certainly not a "Leftie".
> trade doesn't change the number of jobs in a country
I really don't see how that follows.
If there is trade, beyond that of basic barter, there is a need for money, so bankers and accountants. There's shops to sell the goods, so retail staff. There's tax on the money and wages, so tax collectors...The employees have more money, so they can buy more etc etc etc...
Therefore the more trade, the more demand, so the consequential higher need for these other jobs. Conversely, if trade diminishes (for instance if a supply starts becoming exhausted) the production costs will go up, the price will go up, the demand will remain the same (or fall as people look for alternatives) but the number of people selling the product will diminish, hence fewer associated jobs.
If the jobs move elsewhere in the world, because it's cheaper to employ people there, there will be fewer jobs in the original location, fewer people employed there, so less money to spend in that local economy, so they will be less well off even allowing for the (presumably) cheaper goods because the amount they save on the cheaper products is unlikely to equate to the amount of income they've lost.
Someone, somewhere else, might be better off, but that's pretty cold comfort for the newly unemployed.