the tragedy of the Commons is not so much that it's Commons per se but that it's a cooperation problem that he described I 00:01:48 think very clearly that environmental degradation is often a social dilemma is often a cooperation problem and be it a commons or not the regulatory structure 00:02:02 or the the social structure can vary but cooperation problems are are important however of course he said his famous line this paper is you know solution is mutual coercion mutually agreed upon and and so that's 00:02:18 institutions right so the solution is institutions and of course we have other people who have said that very clearly and with a lot of wonderful evidence to back it up Elinor Ostrom being at the 00:02:31 top of that list and and her work on common pool resources and contains this fantastic list of sort of key design 00:02:44 elements that have emerged from studying small-scale common pool resource communities and and these are these are factors that tend to make those communities more successful in managing 00:02:56 those resources sustainably so so that's great