Economies are constantly in flux, and economists have long sought reliable means of analyzing their dynamic properties. This book aims to provide a succinct and accessible exposition of modern dynamic (or intertemporal) macroeconomics. The authors use a microeconomics-based general equilibrium framework, specifically the overlapping generations model, which assumes that in every period there are two generations which overlap. This model allows the authors to describe economies over time and to employ traditional welfare analysis to judge the effects of various policies. By choosing to keep the mathematical level simple and to use the same modelling framework throughout, the authors are able to address many subtle economic issues. They analyze savings, social security systems, the determination of interest rates and asset prices for different types of assets, Ricardian equivalence, business cycles, chaos theory, investment, growth, and a variety of monetary phenomena. Each result is illustrated with analytical derivations, graphically, and by worked-out examples. Exercises, which are strategically placed, are an integral part of the book.

经济是不断变化的，和经济学家长期以来都在寻找自己的动力特性分析的可靠手段。这本书的目的是提供一个现代化的动态（或跨）宏观经济简洁，方便的阐述。作者使用一个微观经济学的一般均衡的框架内，特别是世代交叠模型，假设在每个时期有两代人的重叠。这种模式使作者可以描述随时间效益，并聘请传统的福利分析判断各种政策的影响。通过选择保持简单的数学水平，并使用相同的模型框架各地，作者能够解决许多微妙的经济问题。他们分析储蓄，社会保障制度，对利率和资产，不同类型的资产价格的决心李嘉图等价，商业周期，混沌理论，投资，经济增长，以及各种货币现象。每个结果是说明与分析推导，图形，以及制定出的例子。演习，这是战略性部署，是该书的一个组成部分。