Here's Vamvakidis: The story of the year so far may be that of a negative feedback loop leading to a bad equilibrium ... contingent upon continued positive data, triggered a sharp market sell ...

There are also negative feedback loops ... This is a classic example of a positive feedback loop, where warming leads to more methane, which in turn leads to more warming. It’s like opening ...

Aknin, Lara B., Elizabeth W. Dunn, and Michael I. Norton. "Happiness Runs in a Circular Motion: Evidence for a Positive Feedback Loop between Prosocial Spending and Happiness." Journal of Happiness ...