This book focuses on general theory of price. Price, wage, interest rate, GNP and exchange rate, five factors, are very important not only in economics and economical activity, but also in social and political life. Those five factors are concrete, but also abstract. They belong to different concepts, but dependent on each other. If each of them changes, the other must make corre-sponding adjustment. In order to recognize the inner link between them and their in-fluence on social and political life directly, a functional value, price and wage described by a relatively abstract mathematic sum in place of amount of money are created in a model of closed country or re-gion. Then a concrete Four- Rate formula and Exchange Rate For-mula expressed by money are born. The inner link between them and their influence on social and political life are clearly displayed by either of two formulas. Two formulas are very useful for economist and politician to evaluate the macroeconomic trend in their country or region and to analyze the relationship of growth and decline among price, wage, interest rate and GNP (or GDP) so as to make a suitable economic policy. Philosophical principium will pour new energy and youthful vigor into macroeconomics theory. This book is also a concise outline of a part of macroeconomics and a good reading and educating material for new economic stu-dent. CONTENTS: 1,PRODUCTIVE FORCE OR PRODUCTIVITY 2,FUCTIONAL VALUE OF PRODUCT 3,FUNCTIONAL EXCHANGEABLE VALUE 4,FUNCTIONAL PRICE OF PRODUCT 5,THE PROPERTY OF VALUE, EXCHANE VALUE AND PRICE 6,BALANCED TRIANGLE 7,FUNCTIONAL WAGE OF PRODUCER 8,RELATIONSHIP AMONG PRICE, WAGE, LABOR TIME, INTEREST RATE AND GNP 9,PRICE SYSTEM 10,FOUR-RATE FORMULA 11,GENERAL THEORY OF INTEREST RATE 12,PHILOSOPHICAL DEFINATION OF PRICE 13,TRADE EFFECT 14,EXCHANGE- RATE FORMULA 15,SINGLE CURRENCY AND MATCH 16,FREE EXCHANGE RATE OR PEGGED EXCHANGE RATE 17,COUNTER-FLOWING OF WEALT AND MULTIPLICATION OF WEALTH
