Scarcity principle Principle | How it works | So what I want now what I may not be able to get in the future.
'Don't you dare take those drugs' may actually be the wrong thing to say, particularly if the child has a contrarian preference.
Game theory is mainly used in economics, political science, and psychology, as well as in logic and computer science.
Originally, it addressed zero-sum games, in which one person's gains result in losses for the other participants.
Aristotle knew this too, commenting in his 'Rhetoric': 'That is why what comes to us only at long intervals is pleasant, whether it be a person or a thing; for it is a change from what we had before, and, besides, what comes only at long intervals has the value of rarity.' If you can control supply, then you have a significant lever on demand.
The De Beers company buys huge quantities of diamonds on the world market, simply to keep them scarce so that their high price is maintained.