<p>Sorry for such a long post (and sorry if I say anything you already know):</p>
<p>The purpose of a business degree is to specifically prepare you to do business. "Soft skills" (social skills, communication skills, and leadership abilities) are crucial to success in business, and are covered in business school, but since these are so hard to actually teach, business degrees are arguably more aimed at giving you the ins and outs of the technical aspects of business (accounting, finance, supply-chain management, etc.), to give you a concrete foundation for doing business. Learning these "hard skills" from a business school varies in its importance: for an accountant, this is a necessity; for a manager, those skills can often be picked up on the job and no business degree is required (and in many cases it might actually be better to have something else, perhaps a liberal arts degree, like English or physics, so that you can think "outside the box").</p>
<p>Which brings us to economics. Economics is a liberal art, specifically a social science. Economics is to business as physics is to engineering. A physicist is a scientist; he is curious about the fundamentals of the universe, and he studies this just because it fascinates him. An engineer then uses his discoveries to make useful things and solve real-world problems. An economist is also a scientist---a social scientist---curious about human beings, and he studies them for a living just because they fascinate him. A businessman or business professor then uses his discoveries to find out how to make money.</p>
<p>Before I explain what economics is, let me explain what it is not: Economics is NOT the study of money. Granted, if you're going to talk about economics, you're probably going to talk a lot about money. But money isn't really the heart of the issue; it's merely a representation, an approximation, of what economics is about: utility. "Utility" is what people try to maximize. For example, if I really love apples, but I hate jelly beans, you could say that apples have a higher utility value for me than jelly beans. And maybe you like jelly beans more than apples, so for you, jelly beans have a higher utility value than apples. Why would we disagree? Maybe taste differences, or I care about health more than you do, or you once had a bad experience with an apple ... who knows. Where these utility values actually come from is for psychologists to decide. Economists will simply take them as a given and then study what happens once they're in place. For example, if I possess a bag of jelly beans, and you have a bushel of apples, considering their utlility values for each of us, what do you think will happen? We'll trade with each other, right? And that is economics. Now, perhaps an apple has the same utility value to me as three oranges, so I'm willing to pay three times as much for an apple as an orange---and that's where prices come in. That, of course, is economics. </p>
<p>I think the best definition of economics is "the science of scarcity." Scarcity refers to people having unlimited wants but limited resources. For example, we'd like for everyone in our society to have a job, but that simply can't happen. Some people are going to have jobs while others are going to have to go unemployed. And will that be randomly determined? Of course not. Studying when, why, and how this sort of thing happens is what economics is all about.</p>
<p>Now for some cold hard facts. Economics grads make more money, on average, than business grads (by the order of a few thousand dollars a year, although I don't have the exact figures). Economics involves more mathematics than business does: things vary from school to school, but business majors can often get away with taking some sort of "math for dummies" course, whereas econ majors usually have to take a year or two of calculus, as well as some statistics, and possibly econometrics (which is basically the use of math and statistics in economics). And if you plan on doing graduate study in econ, you'll have to take a LOT of math, and by that I mean pretty much majoring in it right along with econ (maybe not quite that much, depending on your particular plans). Since economics is a social science, at most universities it's in the Arts & Sciences college. Sometimes, though, it's actually in the business school, and other times students can choose which school to take it at. Economics is pretty much taught from the textbook, whereas business, of course, is pretty hands-on, and will often involve case studies and such.</p>
<p>Now here's the magic rule of thumb: If you know you want to study economics, then study economics; if you know you want to study business, then study business, but if you aren't quite sure, then study economics. It's a more versatile degree. You can easily connect it with these subjects (and maybe more): business, finance, mathematics, political science, sociology, psychology, history, and philosophy. Economics demands precision of thought that is useful for just about any job. A business degree is valuable (sometimes even necessary) for some jobs, but it is much more limiting.</p>
<p>Oh, and you probably shouldn't major in "business administration," no matter what. If you're going to do business, it generally makes more sense to specialize (in accounting, or finance, or marketing, or whatever). Engineers can't just get a degree in "engineering"; they have to study chemical engineering or mechanical engineering or whatever. It's probably a mistake that business schools don't make their students do the same (many actually do, though).</p>