I translated a part of book into English. Would anyone correct it? Economics is defined, in short, as a subject which studies how to spend scarce resources like money and time effectively. If the world had sufficient resources, enough to fulfill people's desires, economics would not have been born. A great car, traveling the world, a comfortable and spacious home....Is there anything that you dream of having? What is the reason that you cannot have it now? Certainly, because you lack the money and/or time. We have to give up something because we don't have everything. Therefore, economics is also a subject that studies what the best choices are.