MGMT30008 Managing Sustainably


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A System Dynamics and Leverage Point Analysis of Food Waste

Introduction:

The global food system is a complex adaptive system involving producers, distributors, retailers, and consumers. A signifcant and persistentmalfunchion of this system is the generaton of immense quanthes of food waste, This assignment requires you to analvze the dynamics of foocwaste using a systems thinking framework and to propose strategic interventons based on Donela Meadows's seminal work, " everage Points,Places to Intervene in a System".

This assignment will enable you to demonstrate your of systems thinking, applying theoretical frameworks to a practcal problem and proposinginterventions that are both academically sound and strategically relevant.

Part 1: The System Dynamics of Food Waste (60% of grade)

Your task is to construct and explain a system dynamics model,specifcaly a causalloop diagram (CLD) that ilustrates the underlying stock-and-fowstructures, feedback loops, and delays that contribute to food waste within a chosen segment of the food industry (e.,retal, food service, orhousehold consumption).

1. Visual Model: Create a clear, labeled diagram ofyour CLD.The diagram should visually represent the key stocks accumulatons) and fows (ratesof change) that generate food waste, as well as the causal relatonships and feedback loops connectine them, Use standard system dynamicsnotation (e.g.. rectangles for stocks, valves for flows, and arrows for causal links).

2. Accompanying Text: Write a concise explanation of your model (approx. 500-600 words. Your explanation should:


  • Defne your chosen system boundary: Clearly state which part of the food industry you are modeling and what is included and excluded.
  • Identify and describe key stocks and flows: Explain what the major stocks (e. "inventory of perishable goods" "consumer demand" andflows (e.g., "rate of food delivery, "rate of spoilage, "rate of consumption" are in your model.
  • Unpack feedback loopls): ldentify at least one signifcant feedback loop - the loop can be a positive "reinforcing" or a negative ("balancing")
  • Unpack feedback loop(s): ldentify at least one signifcant feedback loop -the loop can be a positive (“reinforcing") or a negative "balancingor "self-correcting"” loop. Explain how these loops contribute to the accumulation of food waste. For instance, you might model a "success tothe successful" loop where a retailer's large inventory drives high sales promotons, which in turn necessitates even larger inventories tocapture economies of scale, leading to more overstock and waste.
  • Discuss delays: Explicitly address how delays (e. time for food transport, time until product expiration) impact the system's dynamics and contribute to waste.


Part 2: Strategic Interventions Using Leverage Points (40% of grade)

Based on your system dynamics model and the provided reading, identify and propose two potential interventions to reduce food waste. Eachintervention must target a different level of leverage point, from the twelve leverage points outlined by Meadows

1.Select and Explain Two Leverage Points:


  • Choose two points from Meadows's hierarchy (e.g., a "lower-level" point like a parameter change and a "higher-level" point like a change ingoals or a paradigm shift).
  • For each point, clearly state your proposed intervention. For example, an intervention at the "rules of the system" level might be "mandatingfood donation" or "implementing a 'pay-as-you-throw' waste disposal system."
  • Justify your choice by explaining why each intervention falls under its respective leverage point, using concepts from the Meadows readingFor instance, "reguiring retailers to donate unsold food to charites" is a new rule that defnes the system's boundaries and degrees offreedom.


2.Evaluate Effectiveness:


  • Assess the ikely effectiveness of each proposed intervention in reducing food waste within your modeled system
  • Consider potential unintended conseguences, For example, a ower-level interventon might be politically easier to implement but haveminimal one-term impact on systemic behavior.A hieher-ieve interventon mieht be more powerful but face signifcant resistance because itchallenges established norms and power structures.


Submission Guidelines:


  • Part 1: Visual model (diagram) and a written explanation of 500-600 words.
  • Part 2: A written analysis of your two interventions, approximately 500-600 words.
  • Citations: You must reference the provided Meadows reading in your response. Allfactual claims or conceptual points drawn from existingsources must be referenced. Please use the APA citation format.
  • References and exhibits (fgures, tables, etc.) do not count towards the word limit.
  • Formatting: Please submit your work in a single document. Ensure your diagram is clear and legible.



Suggested Resources:

Albin,S, (1997), Building a System Dynamics Model - Part 1: Conceptualization


https: /ocw.mit.edu/courses/15-988-system-dynamics-self-study-fall-1998-spring 1999/1ba2bda320cfc48c71d04cb2cf42409b building:pdf 

TheSystemThinker.Com
https://thesystemsthinker.com/fne-tuning-your-causal-loop-diagrams-part-i/

https://thesystemsthinker.com/fne-tuning-your-causal-loop-diagrams-part-ii/

https://thesvstemsthinkere-to-using-the-archetypes/

A great archive of system thinking materials created from the 1980s to 2010s

Albin, S.(1997). Building aSystem Dynamics Model - Part 1: Conceptualization

https:./ocw.mit.edu/courses/15-988-system-dynamics-self-study-fa-1998-spring-1999/1ba2bda320cfc48c71d04cb2cf42409b building.pdf s
TheSystemThinker.Com

https://thesystemsthinker.com/fne-tuning=your-causal-loop-diagrams-part-i/ 
https://thesystemsthinker.com/fne-tuning=your-causal-loop-diagrams-part-ii/ 

https://thesystemsthinker.com/a-pocket-guide-to-using-the-archetypes/ E

A great archive of system thinking materials created from the 1980s to 2010s

Senge, Peter M. (1990) The fifth Discipline: The Art & Practice of The Learning Organization. Chapters 3-5 provide an excellent, accessibleoverview of feedback loops and svstems archetypes that can be used for further exploration.

Meadows, Donella H. (2008,."Thinking in svstems; A primer. This book ofers a comprehensive introducton to system dynamics and thinking, witha dedicated section on feedback loops.

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