Preface -- I Capital Theory without Capital -- 1 The Static Input-Output Model without Substitution -- 2 The Static Input-Output Model with Substitution -- 3 The Static Input-Output Model with more than One Nonproducible Factor of Production -- II Circulating Capital -- 1 A One Sector Model -- 2 Many Goods, no Substitution -- 3 Dated Labour Inputs and the Theory of Value and Exploitation -- 4 Dated Labour Inputs and the Period of Production -- 5 Böhm-Bawerks Law of Increased Productivity of Increased Roundaboutness. The Point-Input-Point Output Model -- 6 The Period of Production in more General Models -- 7 Substitution. Switching of Techniques -- 8 The Dynamic Nonsubstitution Theorem. Generalization of the Elasticity of Substitution -- 9 Wicksell Effect. Marginal Productivity of Capital -- III Fixed Capital -- 1 Machines -- 2 The General Case of Joint Production and a General Nonsubstitution Theorem -- IV General Equilibrium of Steady States -- References to the Literature.