Irving Fisher (1867-1947)

                             艾榮菲莎

God helps those who work hard

             Biography                                                              生平

           - Born in New York.                                                - 出生於紐約

           - Graduated from the Yale universityin Maths.  - 於耶魯大學數學系畢業

           - Later earned a PhD in Economics.                       - 後獲取經濟學博士

           - Developed index numbers used in Economics. - 於經濟學中應用指數

           - Also interested in world peace, health eating    - 對世界和平,健康食物及健康

               and healthy life-style.                                             生活亦感興趣

              Important work                                                             重要作品

           - One of his best sellers - 'How to live'                           - 暢銷作品--'生活之道'

               Rules for healthy living based on                               - 建基於現代科學之健康 

               modern science.                                                               生活法則

            - Fisher's equation of exchange                                       - 賽爾之交易公式

               The basic theory of inflation.                                          通脹之基本理論

               Theory we have to learn                                             我們需要學習的理論  

           - Equation of exchange (S7)                                             - 交易公式 (中七)

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