Contents -- About the Arne Ryde Foundation -- Preface -- Acknowledgments -- 1 The First Two Phases of General Equilibrium Theory -- 2 The Equilibrium Manifold and the Natural Projection -- 3 The Set of No-Trade Equilibria -- 4 The Global Structure of the Equilibrium Manifold -- 5 The Equilibrium Equation and Its Geometric Interpretation -- 6 Economies with Price-Dependent Utility Functions -- 7 Out-of-Equilibrium Price Dynamics -- 8 Economic Fluctuations and the Arrow-Debreu Model -- 9 The Temporary Equilibrium Model -- Appendix: The Set of Pareto Optima and Its Parameterizations -- References -- Index.