D-4543-2 3
Table of Contents
Building the Fish Banks Model
DOCUMENT INFORMATION .............................................................................................................4
1 INTRODUCTION...............................................................................................................................5
2 PLAYING THE FISHING GAME.....................................................................................................6
2.1 ROLE DESCRIPTION ..........................................................................................................................8
2.2 PLAYING THE GAME.......................................................................................................................10
3 BUILDING THE MODEL ...............................................................................................................12
3.1 MODELING THE FISH POPULATION SUBSYSTEM...........................................................................13
3.1.1 Description...............................................................................................................................13
3.1.2 Building the Model ...................................................................................................................14
3.1.3 Questions..................................................................................................................................16
3.2 MODELING THE SHIP SUBSYSTEM.................................................................................................17
3.2.1 Description...............................................................................................................................17
3.2.2 Building the Model ...................................................................................................................18
3.2.3 Questions..................................................................................................................................20
3.3 MODELING THE CONNECTION SUBSYSTEM..................................................................................20
3.3.1 Description...............................................................................................................................21
3.3.2 Building the Model ...................................................................................................................22
3.3.3 Questions..................................................................................................................................24
3.4 COMBINING THE SYSTEMS.............................................................................................................25
4 THE TRAGEDY OF THE COMMONS..........................................................................................26
5 DEBRIEFING ...................................................................................................................................27
Renewable Resource Depletion
6. PURPOSE OF LESSON ..................................................................................................................31
7. FISH BANKS MODEL REVIEW...................................................................................................33
8. POLICY ANALYSIS EXERCISE...................................................................................................35
9 APPENDIX........................................................................................................................................50
9.1 APPENDIX 1: SELECTED ANSWERS TO QUESTIONS .....................................................................50
3.1.3 Modeling the Fish Population Subsystem: Page 16..................................................................50
3.2.3 Modeling the Ship Subsystem: Page 19....................................................................................50
3.3.3 Modeling The Connection Subsystem: Page 23........................................................................50
9.2 APPENDIX 2: THE FISHING GAME ON STELLA II VERSION 2.2 ...................................................51
9.3 APPENDIX 3: THE FISHING GAME ON STELLA II VERSION 1 ......................................................54
9.4 APPENDIX 4: THE FISH BANKS MODEL ........................................................................................56
DOCUMENT INFORMATION
10. VENSIM EXAMPLES ...................................................................................................................60