为什么要学经济学？这个问题涉及到许多原因，以下是对这个问题的解析以及英文翻译对照：

首先，经济学是研究人类社会中资源配置和利用的科学。它可以帮助我们理解经济现象背后的原因和规律，从而更好地预测和决策。例如，通过学习经济学，我们可以了解到市场供求关系、价格变动、市场竞争等经济现象的本质和规律，这有助于我们做出更明智的投资和消费决策。英文翻译为：Firstly, economics is a science that studies the allocation and utilization of resources in human society. It can help us understand the reasons and laws behind economic phenomena, thereby enabling better prediction and decision-making. For example, by studying economics, we can understand the nature and laws of economic phenomena such as market supply and demand, price changes, market competition, etc., which helps us make more informed investment and consumption decisions.

其次，经济学可以帮助我们分析和解决社会问题。通过对经济现象的深入研究，我们可以更好地了解社会问题的根源和解决方案。例如，通过研究经济发展史和各国经济发展模式，我们可以总结出经济发展的经验和教训，为制定科学合理的发展战略提供理论支撑和实践经验。英文翻译为：Secondly, economics can help us analyze and solve social problems. By deeply studying economic phenomena, we can better understand the root causes of social problems and find solutions. For example, by studying the history of economic development and development models in various countries, we can summarize the experiences and lessons of economic development, providing theoretical support and practical experience for the formulation of scientific and reasonable development strategies.

最后，学习经济学可以培养我们的思维方式和决策能力。经济学作为一门社会科学，强调逻辑推理、数据分析、归纳演绎等思维方式，通过学习经济学，我们可以逐步培养起这些思维方式，从而提高自己的决策能力和判断力。英文翻译为：Finally, studying economics can cultivate our way of thinking and decision-making ability. As a social science, economics emphasizes ways of thinking such as logical reasoning, data analysis, induction and deduction. By studying economics, we can gradually cultivate these ways of thinking, thereby improving our decision-making ability and judgment.