Irritable means easy to irritate or bother.. If you have irritable skin, you get a rash from just about anything. An irritable person is not easy-going and often not very easy to be around. You might feel like you're walking on eggshells, or being extra careful not to upset your brother when he's in an irritable mood.
The economic problem. All societies face the economic problem, which is the problem of how to make the best use of limited, or scarce, resources. The economic problem exists because, although the needs and wants of people are endless, the resources available to satisfy needs and wants are limited. Resources are limited in two essential ways:
The solutions to this class of problem result in the identification of a range of potential solutions where the gain of one objective, for example, lower economic cost is achieved only through the tradeoff against other objectives -- i.