
1) Game theory
Found on
https://www.crosswordclues.com/clue/ratchet-effect

A ratchet effect is an instance of the restrained ability of human processes to be reversed once a specific thing has happened, analogous with the mechanical ratchet that holds the spring tight as a clock is wound up. It is related to the phenomena of featuritis and scope creep in the manufacture of various consumer goods, and of mission creep in ...
Found on
http://en.wikipedia.org/wiki/Ratchet_effect

Used to describe any situation in which the response in one direction is markedly different to the response in the opposite direction, e.g. trade unions are quick to push for higher wages when economic activity picks up but are very slow to agree to lower
Found on
http://www.encyclo.co.uk/local/20140
No exact match found.