We are now aware that the cost of externalities to society are considerable. A simple example would

be that proximity to flow of motor vehicles is likely to increase ill-health requiring state-funded

medical services where they exist, to treat at state (taxpayers') expense those who become ill. In the

UK the number of people affected this way is believed to be numbered in the tens of thousands an-

nually. Thus some businesses' cost structures do not reflect their true cost to society.

Another example would be the discharge of untreated waste into rivers or the sea, where the com-

panies undertaking these activities may not be contributing financially to the cleaning up required.

In future years there is likely to be much debate about this, as some people will attempt to find ways

to make companies pay the full cost of running their businesses.

Thank you for your visit.