Contents 1 Introduction ‘l Research background and significance · · ’l review ····- · --···-··· 一1 Markofinternationalfood grainPrice 1 Track of international food grain price volatility 2 Qualitative analysis of international food grain price volatility 。4 Quantitative analysis of international food grain price volatility 9 Countermeasure - .-10 ment ·- -·-- t-- ·t··--一11 Research methods&framework 一12 Researchmethods · ··- 12 Research framework ‘12 - 一12 2 The Overview and features of International food grain prices volatility—— takewheat as example ·15 Historical volatility Track · 15 ne analysis ofcyclical fluctuations · ·。’16 2- Long-term Irend analysis’ 17 ponentAnalysis -‘18 Chapter summary ’ · 20 3 Theory analysis of international food grain price volatility factors ’21 TheoreticalBasis 一2l Marx’Stheoryofvalue ‘21 Generalized theory ofsupply&demand based on Marx’S value theory22 Factors analysis of Fluctuations intemational food grain price volatility 3 1 Fundamentals of Supply&demand一一Phy’sical Level ’3 1 Non-fundamental supply&demand——Ⅵ咖al Level 43 4 Empirical Analysis of international food grain price volatility 48 F怂硝R model.· ·- 一48 ·· -· ·49 Variable settings anddataprocessing 49 EmpiricalAnalysis- -· ····· ‘51 III 万方数据 Empirical Analysis based on Generalized Theory of supply&demand (January 1990一June2015) ‘56 Analysis of Generalized Theory of supply and demand (January 1990-December2005) 63 Analysis of Generalized Theory of supply&demand(January 2015) · ··· · · · 68 Chapter summary ·‘73 5 Conelusions and Countermeasure 一75 Mainconclusion · ··75 Countermeasure ·75 domestic food grain production and protect domestic basic supply ·_76 Strengthen international c