[Graph logo] Nelson-Winter Models Revisited: Prototypes for Computer-Based Reconstruction of Schumpeterian Competition

[Nelson-Winter Models]

Main Page

Preface

1. NelWin Family

2. Basic Structure

3. Design of
Experiments

4. Parametric
Experiments

5. Programming
Experiments

References

Appendix 1

Appendix 2

Appendix 3

See also:
1995 Pages

 



This is the web edition of a paper from 1996 from a project related to the Danish Research Unit for Industrial Dynamics (DRUID) and IKE Group, Dept. of Business Studies, Aalborg University. The paper is also available as a DRUID Working Paper [PDF]. The paper is written by Esben S. Andersen in collaboration with Anne K. Jensen, Lars Madsen and Martin Jørgensen.
 

Contents

Preface

1. The family of NELWIN models

2. The basic structure of NELWIN models

  • 2.1. Background
  • 2.2. The structure of a standard NELWIN model
    • 2.2.1. Overview
    • 2.2.2. State variables time t
    • 2.2.3. Short run
    • 2.2.4. New technology
    • 2.2.5 New capital
    • 2.2.6. State variables time t + 1

3. NELWIN78: the setup of experiments

  • 3.1. Relationships to explore
  • 3.2. Endogenous and exogenous variables

4. NELWIN78: simulations with varying parameters

  • 4.1. Running NELWIN78 (NW78binary)
  • 4.2. Industry-level analysis
  • 4.3. Firm-level results
  • 4.4. Statistical analysis (NW78stats)

5. NELWIN77 and 84: varying program elements and parameters

  • 5.1. Combining parameter variation with model/program development
  • 5.2. Simple simulations with NELWIN77 (NW77param and NW77stats)
  • 5.3. The computational structure of NELWIN77
  • 5.4. Short run: elements and changes
  • 5.5. New technology: elements and changes
  • 5.6. New capital: elements and changes

References

Appendix 1: The DRUIDIC programming system

  • A1.1. Programming
  • A1.2. Procedures for data analysis

Appendix 2: NELWIN78 programs

  • NW78binary := proc(T,Firmno,Invpol,Rapprop,Rgrowth,Rsdev)
  • NW78stats := proc(R,T, Firmno, Invpol, Rapprop, Rgrowth, Rsdev,SEED)

Appendix 3: NELWIN77 programs

  • NW77param := proc(n,T)
  • NW77stats := proc(R,n,T,SEED)

Maintained by Esben Sloth Andersen, email: esa@business.aau.dk.
Revision: 09 August 2004, 13:35.