1.) noun => a balance achieved between two desirable but incompatible features; a compromise.
2.) noun => the loss of potential gain from other alternatives when one alternative is chosen.
3.) requires decision makers to evaluate whether the benefit of one more unit of something is greater than its cost.
4.) noun=> a thing that motivates or encourages one to do something or a payment or concession to stimulate greater output or invesment.

Sana nakatulong ako :)  
Trade-off-- handang ipagpalit sa nagawang desisyon.
opportunity cost-- pagpili ng isang bagay kapalit ng isa pang bagay; pagpili o pagtimbang sa kahalagahan.
marginal thinking--ano ang nararapat para sa ikabubuti sa desisyon.
incentives--nagpapalakas ng loob.
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