This book analyzes the national economic system with systematic theory and defines the object of research as "the movement and laws of the national economic system." This book also proceeds a more in-depth study of the four relations concerning the reproduction. It examines the interdependent relations among population, economy, society, resources and environment, as well as the interactions among demographic reproduction, material product reproduction, spiritual and cultural reproduction ...

This book chooses four different transmission mechanisms of interest rate, credit, exchange rate, and asset price to study whether China’s monetary policy has an impact on these four transmission mechanisms and then studies whether these four transmission mechanisms have an impact on the macroeconomy, so as to determine the impact of China’s monetary policy on macro-goals.