Well the following is not exactly about O level Geography... but someone asked so I have to resopond! :)
Isn't Economics concerning everything in the world? If not, what are the aspects it has no connection with? The Arts?Economics studies the production, distribution, consumption and trade of goods and services. My point of view is that since goods and services in capitalist countries (like the ones we belong to) are most often than not exchanged for money, Economics is also the study of how money is circulated among different individuals, communities, organisations, businesses etc. Therefore while every part of the world has some kind of economic system in place to manage the flow of money, Economics is not concerned about everything in the world. For instance, Economics will not be overly worried about say an individual's sense of belonging in his/her city, climate change, marine life, disputed borders etc. unless dollars and cents are invloved. For example, the economics of climate change would refer to the cost and benefits (in dollar sense) of accelerating/slowing down global warming. In short, Economics is focused on MONEY...oh well some economists may disagree but that's my opinion :)
Are governments a form of business?Governments are not a form of business because governments do not strive to make profits. Governments serve the people and preserve the welfare of the people. Thus governments employ civil servants like me to serve you. Governments do not profit from the service and goods they provide. Business on the other hand are profit-driven. Thus everything decision made is based on "cost and sales" including decision on where to locate. Governments however can own businesses that are profit driven. For instance Singapore Airlines and Singtel are majority owned by the Singapore government. :)
What jobs can an Economics graduate do?Economics is a general degree and not a professional degree. Therefore unlike say Law where one qualifies to be a lawyer upon graduation, an economics graduate is not technically speaking qualified to do a particular job. However their understanding of economic systems may be valued and sought after by companies and government bodies. After all its a MONEY world! :)
Can you teach Economics? Is it difficult for someone who is an expert in Geography to become an expert in Economics?I will not be able to teach Economics as I am not versed in Economics theory. I can teach Economic Geography though as I am familiar with how Economic Geographers understand economic systems. Its slightly different from how Economists view economic systems. In Geography, we explore more of the interaction among economic spaces and places while in Economics a lot more quantification (calculation, statistics) is invloved. Like all subjects, its always difficult to become an expert. An expert in Economics or Geography usually refers to someone who has spent a considerable amount of time doing nothing but think about his area of specialty and end up with a Phd (doctorate degree). It might be easier for a "Geography Expert" to become an "Economics Expert" but not necessarily.