经济学是对人类社会中财富的生产，分配和消费的研究，但这种观点只是许多不同定义中的一个。经济学也是研究人们（作为消费者）选择购买哪些产品和商品。印第安纳大学说经济学是一门研究人类行为的社会科学。它有一种独特的方法来分析和预测个人行为以及公司和政府，俱乐部甚至宗教等机构的影响。经济学是对选择的研究。虽然有些人认为经济学纯粹是靠货币或资本驱动，但选择更为广泛。如果对经济学的研究是研究人们如何选择使用他们的资源，那么分析师也必须考虑他们所有可能的资源，其中只有一种资金。在实践中，资源可以涵盖从时间到知识，从属性到工具的所有内容。因此，经济学有助于说明人们如何在市场中互动以实现其多样化的目标。除了定义这些资源是什么之外，稀缺的概念也是一个重要的考虑因素。这些资源 – 无论种类多么广泛 – 都是有限的，这是人们和社会做出的选择中紧张的根源：他们的决定是无限的欲望和欲望与有限的资源之间不断的拉锯战的结果。许多人将经济学研究分为两大类：微观经济学和宏观经济学。 “经济学词典”将微观经济学定义为“个体消费者，消费者群体或企业层面的经济学研究”，微观经济学是对个人和群体做出的决策的分析，影响这些决策的因素，以及决定影响他人。
Economics is a study of the production, distribution, and consumption of wealth in human society, but this view is just one of many different definitions. Economics is also about researching which products and goods people (as consumers) choose to buy. Indiana University says economics is a social science that studies human behavior. It has a unique way to analyze and predict the impact of individual behavior and institutions such as companies and governments, clubs and even religions. Economics is the study of choice. Although some people think that economics is driven purely by money or capital, the choice is more extensive. If the study of economics is to study how people choose to use their resources, then analysts must also consider all of their possible resources, of which only one. In practice, resources can cover everything from time to knowledge, from attributes to tools. Therefore, economics helps explain how people interact in the market to achieve their diverse goals. In addition to defining what these resources are, the concept of scarcity is also an important consideration. These resources – no matter how extensive they are – are limited, which is the source of tension in the choices people and society make: their decisions are the result of constant tug-of-war between infinite desires and desires and limited resources. Many people divide economics research into two broad categories: microeconomics and macroeconomics. The “economics dictionary” defines microeconomics as “an economic study of individual consumers, consumer groups or firms.” Microeconomics is an analysis of the decisions made by individuals and groups, the factors that influence these decisions, and Decide to influence others.