xviii ANALYTICAL TABLE OF CONTENTS

CHAPTER X

FIRST APPROXIMATION IN GEOMETRIC TERMS

PAGK

§ 1. Introduction.231

§ 2. The Map of This Year’s and Next Year’s Income ... 231

§ 3. The Market Line.235

§4. The Willingness Line.238

§ 5. The Two Lines Compared.240

§6. The Whole Family of Market Lines.242

§ 7. Many Families of Willingness Lines.244

§ 8. A Typical Family of Willingness Lines.246

§ 9. Time Preference May Be Negative.248

§ 10. The Personal and Impersonal Influences on Impatience . 249

§11. Deciding Whether to Borrow or Lend.250

§ 12. Interest Fixed for an Individual.252

§ 13. How an Individual Adjusts His Income Position to the

Market.253

§ 14. Market Equilibrium.255

§ 15. The Four Principles Charted.258

§ 16. The Geometric Method.259

§ 17. Relation to Supply and Demand.260

CHAPTER XI

SECOND APPROXIMATION IN GEOMETRIC TERMS

§ 1. Introduction.263

§ 2. The Investment Opportunity Line.264

§ 3. The Individual’s Adjustment Without Loans .... 266

§ 4. Individual Adjustment With Loans.269

§ 5. The Double Adjustment Discussed.272

§ 6. Market Equilibrium.275

§ 7. The Nature of the Opportunity Line Discussed . . . 277

§ 8. Investment Opportunity and Impatience.280

§ 9. Can Interest Disappear?.282

§ 10. Does Interest Stimulate Saving?.286

§11. Relation to Supply and Demand Curves.286

CHAPTER XII

FIRST APPROXIMATION IN TERMS OF FORMULAS

§ 1. Case of Two Years and Three Individuals.288

§ 2. Impatience Principle A. (Three Equations).290

§ 3. Impatience Principle B. (Three Equations).290