This book mainly explains some of the author's new thinking on currency, economic growth and debt issues in recent years. The international financial crisis that broke out in 2008 had extremely far-reaching and complex impacts. In 2020, the COVID-19 epidemic spread across the world and brought new and complex impacts to the world economy. In response to the impact of the crisis, the world has implemented unprecedented monetary stimulus measures. New changes have occurred in the combination of currency, economic growth, and inflation. The phenomenon of high debt has become a problem that cannot be ignored in the field of macroeconomic research. Currency, economic growth, inflation and debt have always been variables of concern in macroeconomics. The author follows the tradition of classical economic theory and uses the perspective of interaction and dynamic changes of supply and demand to understand the general mechanism of economic growth, introduces currency into this mechanism, observes the interactive relationship between currency and economic growth, and then uses this framework to think and analyze some phenomena and problems in the real economy.
