BullshitOf course you don't. You only take salaries into consideration. Think critically using your supply-demand theory and turn it upside down. For a country to fill the demand for smart/competent/capable/educated (use any adjective you like) teachers you must offer a compensation that is attractive. Putting what you value aside for a moment, most developed societies have put considerable, and increasing, value into education; therefore wanting (or demanding) teachers that are considerably, and increasingly, bright. In order to get those types of candidates you must make the compensation more attractive than 'the least someone will do the job for'. Therefore if society is demanding (there's that word again) teachers of certain qualifications (ones that are higher the the average person has or job requires), you must supply an equivalent compensation.
Read the link below. I only skimmed it, but it does give a brief history of teacher compensation and qualifications.
http://www.etfo.ca/SiteCollectionDo...uments/ETFO History Documents/history-pt3.pdf
You could replace every last one of these teachers @ 20% lower compensation and still have a line up of qualified applicants for the position
Unless you have not heard the supply of jobs is far less than the demand
Somehow you leave the impression that teachers are the cream of the crop & should be compensated as such
They are defiantly not that
Those that can not........teach
Now it appears, that those who can not teach...............strike