The theory of interest as determined by impatience to spend income and opportunity to invest it / by Irving Fisher.

Part I. Introduction -- I. Income and capital, 3 -- II. Money interest and real interest, 36 -- III. Some common pitfalls, 45 -- Part II. The theory in words -- IV. Time preference (Human Impatience), 61 -- V. First approximation to the theory of interest (assuming Each person's income stream foreknown and Unchangeable except by loans), 99 -- VI. Second approximation to the theory of interest (assuming Income modifiable (1) by loans and (2) by Other means), 125 -- VII. The investment opportunity principles, 150 -- VIII. Discussion of the second approximation, 118 -- IX. Third approximation to the theory of interest (assuming Income uncertain), 206 -- Part III. The theory in mathematics -- X. First approximation in geometric terms, 231 -- XI. Second approximation in geometric terms, 263 -- XII. First approximation in terms of formulas, 288 -- XIII. Second approximation in terms of formulas, 302 -- XIV. The third approximation unadapted to mathematical Formulation, 316 -- Part IV. Further discussion -- XV. The place of interest in economics, 325 -- XVI. Relation of discovery and invention to interest rates, 341 -- XVII. Personal and business loans, 356 -- XVIII. Same illustrative facts, 312 -- XIX. The relation of interest to money and prices, 399 -- XX. Objections considered, 452 -- XXI. Summary, 493 -- Appendices, 507 -- Bibliography, 543 -- Index, 551.