Wednesday, November 30, 2016

'The Tragedy of the Commons' (1)


In 1968, the ecologist Garrett Hardin published an article in Science magazine entitled The Tragedy of the Commons.  Basically, it was an abstract argument intended to show how all forms of communal organisation of property eventually ended in chaos.  The word ‘commons’ comes into the title because Hardin used the idea of rural commonage—land not individually owned to which everyone had access for grazing—as the basis of his argument.

The fundamental flaw in Hardin’s reasoning was identified by Lin Ostrom, later a Nobel prizewinning economist, who had a special interest in the field of communal property and its management.  She argued that Hardin’s assumption that commonage or communal property was property that anybody could take advantage of was in reality flawed.  From her own experience, communal property systems were tightly organised and controlled, access to them being confined to an agreed group of people who alone had a right to take advantage of them.  Hardin’s formulation of a communal system to which anybody and anybody had access had no roots in reality, and any theory built on the foundation of such an assumption was therefore flawed.

And, of course, she was right—insofar as it went.

Most Irish people, especially those living in rural districts will be familiar with the idea of commonage.  For example, in mountainy areas marginal land tends often to be farmed in such a way.  Rights to the mountain are confined to those farmers who have land abutting it, and usually there are stocking restrictions depending upon the extent of each one’s borderage.

However, the system survives only to the extent that qualifying farmers jealously preserve such rights, especially with regard to preventing those who have no bordering land from grazing animals on the commonage.

It is at this point that Hardin’s argument takes on a renewed relevance.  It was his contention that if there is open access to such commonage then inevitably it will become overgrazed and the ecosystem underlying it will collapse.  His theory became increasingly controversial to the extent that he believed it had a wider human application and that uncontrolled population growth was likely—indeed, certain—to lead to wider economic and environmental disaster.

My  reason for raising this matter at all is that there are further important implication arising from it, which I will be exploring over the next couple of mailings.