Schelling Point

Mentioned in Surowiecki's Wisdom of Crowds. Surprisingly, not a web page on Google (easily found at least) dedicated to the concept. A pretty good description here:

I was then reminded of something economists call a "Schelling point," after the Harvard economist Thomas Schelling. Schelling had the insight that certain places, numbers, ratios, and so on are more prominent in our minds than others. He asked people to say where they would go to meet someone if they were told (and knew the other was told) only the time and that it would be somewhere in New York. Most chose Grand Central Station. How to divide a prize? 50-50. And so on. The existence of these prominent places and numbers and such permit us to coordinate our actions in contexts where a more "pure" and "formal" rationality would fail. These prominent things are called "Schelling points."

Src: here