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Plumbers are hard to find everywhere, DixieGal. In my community to learn the plumbers' trade you have to get into the union; to get into the union you have to know someone in the union and that person has to have friendly relations with the right people in the union.
The trouble with using supply and demand to determine labor costs, housing prices, international trade, the true value of investments or any number of other things is that someone will always find a way to circumvent the mechanism in order to have the whole garden to themselves.
I've come to think the theory of supply and demand is flawed; we all have to endure periodic shortages and gluts as a result. In reality, an education is little more than a fishing license, a chance to hope.
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