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:
You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate. (January 2015) The history of economic thought deals with different thinkers and theories in the subject that became political economy and economics, from the ancient world to the present day. It encompasses many disparate schools of economic thought.