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There are many fine textbooks for macroeconomics at the intermediate level currently available. These texts include, but are certainly not limited to, Mankiw (2016), Williamson (2014), Jones (2013), Barro (1997), Abel, Bernanke, and Croushore (2017), Gordon (2012), Hall and Pappell (2005), Blanchard (2017), Dornbusch, Fischer, and Startz (2013), Froyen (2013), and Chugh (2015).
Given the large number of high quality texts already on the market, why the need for a new one? We view our book as fulfilling a couple of important and largely unmet needs in the existing market. First, our text makes much more use of mathematics than most intermediate books. Second, whereas most textbooks divide the study of the macroeconomy into two “runs” (the long run and the short run), we focus on three runs – the long run, the medium run, and the short run. Third, we have attempted to emphasize the microeconomic underpinnings of modern macroeconomics, all the while maintaining tractability and a focus on policy. Fourth, we include a section on banking, bank runs, bond pricing, and the stock market. While this material is generally left to money, credit, and banking texts, the recent Great Recession has taught us the importance of thinking seriously about the implications of the financial system for the macroeconomy. Finally, we feel that a defining feature of this text is that it is, if nothing else, thorough – we have tried hard to be very clear about mathematical derivations and to not skip steps when doing them. Modern economics is increasingly quantitative and makes use of math. While it is important to emphasize that math is only a tool deployed to understand real-world phenomena, it is a highly useful tool. Math clearly communicates ideas which are often obfuscated when only words are used. Math also lends itself nicely to quantitative comparisons of models with real-world data. Our textbook freely makes use of mathematics, more so than most of the texts we cited above. An exception is Chugh (2015), who uses more math than we do. To successfully navigate this book, a student needs to be proficient at high school level algebra and be comfortable with a couple of basic rules of calculus and statistics. We have included Appendices A and B to help students navigate the mathematical concepts which are used throughout the book. While we find the approach of freely integrating mathematics into the analysis attractive, we recognize that it may not be well-suited for all students and all instructors. We have therefore written the book where the more involved mathematical analysis is contained in Part III. This material can be skipped at the instructor’s discretion,which allows an instructor to spend more time on the more graphical analysis used in Parts IV and V.
教材特色部分翻译：
鉴于市场上已有大量高质量的文本，为什么需要新的？我们认为我们的书充满了现有市场中的几个重要且基本上未满足的需求。
首先，我们的文本比大多数中级书籍更多地使用数学。
其次，尽管大多数教科书将宏观经济研究分为两个“运行”（长期和短期），但我们关注的是三次运行 - 长期运行，中期运行和短期运行。
第三，我们试图强调现代宏观经济学的微观经济基础，同时保持易处理性和对政策的关注。
第四，我们包括银行，银行挤兑，债券定价和股票市场的部分。虽然这些材料通常留给金钱，信贷和银行业文本，但最近的大萧条告诉我们认真考虑金融体系对宏观经济的影响的重要性。
最后，我们认为本文的一个定义特征是，如果没有别的，它是彻底的 - 我们已经努力非常清楚数学推导并且在做这些时不要跳过步骤。现代经济学越来越量化，并利用数学。虽然重要的是要强调数学只是用于理解现实世界现象的工具，但它是一个非常有用的工具。数学清楚地传达了在仅使用单词时经常被混淆的想法。数学也非常适合模型与实际数据的定量比较。我们的教科书自由地使用数学，比我们上面提到的大多数文本都要多。
为了成功地浏览这本书，学生需要具备高中水平代数的能力，并熟悉微积分和统计学的几个基本规则。我们已经包含了附录A和附录B，以帮助学生浏览本书中使用的数学概念。虽然我们发现了将数学自由地融入到分析中的有吸引力的方法，但我们认识到它可能并不适合所有学生和所有教师。因此，我们编写了这本书，第三部分包含了更多涉及的数学分析。教师可自行决定是否跳过此材料，这样教师可以将更多时间花在第IV和第V部分中使用的更多图形分析上。
Intermediate Macroeconomics-Julio Gar′ın Robert Lester.rar
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