Variational Methods in Economics

Variational Methods in Economics

1st Edition - January 1, 1971

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  • Editor: C. J. Bliss
  • eBook ISBN: 9781483275284

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Description

Advanced Textbooks in Economics, Volume 1: Variational Methods in Economics focuses on the application of variational methods in economics, including autonomous system, dynamic programming, and phase spaces and diagrams. The manuscript first elaborates on growth models in economics and calculus of variations. Discussions focus on connection with dynamic programming, variable end points-free boundaries, transversality at infinity, sensitivity analysis-end point changes, Weierstrass and Legendre necessary conditions, and phase diagrams and phase spaces. The text then ponders on the constraints of classical theory, including unbounded intervals of integration, free boundary conditions, comparison functions, normality, and the problem of Bolza. The publication explains two-sector models of optimal economic growth, optimal control theory, and connections with the classical theory. Topics include capital good immobile between industries, constrained state variables, linear control problems, conversion of a control problem into a problem of Lagrange, and the conversion of a nonautonomous system into an autonomous system. The book is a valuable source of information for economists and researchers interested in the variational methods in economics.

Table of Contents


  • Preface

    Chapter 1

    1.1. Introduction

    1.2. Growth Models in Economics

    Chapter 2: Calculus of Variations-Classical Theory

    2.1. Introduction

    2.2. Historical Foundations and Some Classical Problems

    2.3. Functions

    2.4. Phase Diagrams And Phase Spaces

    2.5. The Simplest Problem in the Calculus of Variations

    2.6. The Euler Equation and Corner Conditions

    2.7. The Euler Equation in Special Cases

    2.8. Examples

    2.9. Ramsey's Problem

    2.10. Ramsey's Problem-Finite Planning Horizons

    2.11. Ramsey's Problem-Infinite Planning Horizons

    2.12. Samuelson's Catenary Turnpike Theorem

    2.13. Generalization to n Functions

    2.14. Parametric Representation

    2.15. The Weierstrass and Legendre Necessary Conditions

    2.16. An n-Sector Generalization of Ramsey's Model

    2.17. Sufficient Conditions Based on the Concavity of F

    2.18. Classical Sufficiency Conditions

    2.19. Sensitivity Analysis-End Point Changes

    2.20. Weierstrass' Sufficient Conditions

    2.21. Variable End Points-Free Boundaries

    2.22. Variable End Points-Transversality

    2.23. Transversality at Infinity

    2.24. Transversality in the Model of Samuelson and Solow

    2.25. The Connection with Dynamic Programming

    Problems

    Chapter 3: Classical Theory-Constraints

    3.1. Introduction

    3.2. Isoperimetric Constraints

    3.3. The Problem of Lagrange

    3.4. A Simplified 'Proof of the Multiplier Rule for Fixed End Points

    3.5. Transversality

    3.6. Free Boundary Conditions

    3.7. Examples

    3.8. Preliminary Results

    3.9. The Comparison Functions

    3.10. The Convex Polyhedral Cone K

    3.11. The Convex Cone K*

    3.12. The Multiplier Rule and the Weierstrass and Legendre Necessary Conditions

    3.13. Unbounded Intervals of Integration

    3.14. Normality

    3.15. Sufficiency Based on the Concavity of H

    3.16. The Problem of Bolza

    Problems

    Chapter 4: Optimal Control Theory

    4.1. Introduction

    4.2. The Basic Control Problem

    4.3. Necessary Conditions-The Maximum Principle

    4.4. The Conversion of a Nonautonomous System into an Autonomous System

    4.5. An Heuristic Derivation of the Necessary Conditions

    4.6. The Ramsey Model: Finite Planning Horizon

    4.7. A Phase Diagram Using Conjugate Variables

    4.8. The Ramsey Model: Infinite Planning Horizon

    4.9. A Situation in Which it may be Optimal to Reach Bliss in a Finite Time

    4.10. The Ramsey Model with Discounting

    4.11. Optimal transfer from K0 to K1 with Z → 0 as K → K1

    4.12. The Conversion of Classical Problems into Control Problems

    4.13. The Synthesis Problem

    4.14. The Model of Samuelson and Solow Again

    Problems

    Chapter 5: Connections with the Classical Theory

    5.1. Introduction

    5.2. Valentine's Procedure

    5.3. The Conversion of a Control Problem into a Problem of Lagrange

    5.4. Necessary Conditions

    5.5. The Time Variation of H

    5.6. Examples

    5.7. Sufficiency

    5.8. Linear Control Problems

    5.9. Constrained State Variables-Introduction

    5.10. The Control Problem and the Equivalent Problem of Lagrange

    5.11. Necessary Conditions for the Problem of Lagrange

    5.12. An Interior Segment

    5.13. A Boundary Segment

    5.14. Transition Conditions

    Problems

    Chapter 6: Two-Sector Models of Optimal Economic Growth

    6.1. Introduction

    6.2. The Capital Good Freely Transferable Between Industries

    6.3. The Capital Good Immobile Between Industries

    6.4. Final Remarks

    Problems

    Appendix I: Uniqueness of the Utility Functional and the Utility Function

    Appendix II: Implicit Function Theorems

    Appendix III. Existence Theorems for Systems of Ordinary Differential Equations

    References

Product details

  • No. of pages: 388
  • Language: English
  • Copyright: © North Holland 1971
  • Published: January 1, 1971
  • Imprint: North Holland
  • eBook ISBN: 9781483275284

About the Editor

C. J. Bliss

About the Authors

G. Hadley

M. C. Kemp

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