Brian Greenberg :verified:

📊 Rethinking inventory strategy — new system dynamics research challenges retail norms.

A recent study shows that introducing a competing product earlier during an existing product’s decline phase can lead to higher long-term revenue. 🤯

Key insights for retail leaders:
🛒 Inventory decisions must model real substitution behavior
🔁 Early introductions can phase out old products more profitably
🧮 Demand forecasting should include stockout effects
📦 Safety stock planning and shorter review cycles reduce lost sales
🧠 Dynamic, not static, strategies win in FMCG and tech retail

This is a must-read for anyone managing product portfolios, especially in fast-moving markets where demand shifts fast and substitution patterns aren't predictable.

#SystemDynamics #Systems #SystemsTheory #IEEE #WSD

ieeexplore.ieee.org/document/1

Guido Wolf Reichert ⚛️

Maybe in my #systemdynamics bubble someone can answer this question regarding #elasticity in a continuous-time dynamical systems context (i.e., it is a factor scaling fractional rates)?

Why is this (very natural) momentum-related formulation not more widespread in models?

math.stackexchange.com/q/49442

Economic elasticity from a continuous-time dynamical systems perspective

I note that in system dynamics (Forrester (1961) Industrial…

Mathematics Stack Exchange
Jochen Fromm

Jay Forrester (at 21:00) about #systemdynamics and why governments around the world are not able to stop #climatechange:

"a deep understanding of these issues would make a very major change in the world but that deep understanding [..] has to include a public understanding because you cannot expect these changes to come from the top of a corporation or the top of a government. People in [..] System Dynamics as well as other approaches to policy design are always talking about convincing decision makers. There are no such people [..] When it comes to the big issues if a policy in government or a corporation is going in this direction and that's a governmental policy and you'd like to push it a little bit one way or the other then you can persuade and you can have lobbyists and you can bribe a few people and you can push it a little bit but if the real goal is to reverse it totally there is no government that's capable doing that unless there is a public support and so [..] it has to come up from the Grassroots [..] to be able to deal with the big issues that put the long-term ahead of the short term which is one of the main things [we need to do]"
youtu.be/6b4DmGtlOik?si=RXwBP8

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Enjoy the videos and music you love, upload original…

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Jochen Fromm

John Scales Avery (1933-2024) was an American theoretical chemist. In his book "Civilization's Crisis" he argues that civilization as a whole faces a set of linked challenges. #ClimateChange is caused by consumption of non-renewable #FossilFuels but it is just one aspect of a bigger crisis. Other aspects are #Deforestation, #OceanAcidification, #NuclearWaste and #pollution in general. #ResourceDepletion and #VanishingResources in combination with #OverPopulation will eventually lead to a #collapse of #civilization in this century according to #systemdynamics and classic #limitstogrowth models. The turning point is #PeakOil or the #HubbertPeak which we are reaching now.
worldscientific.com/worldscibo

More articles from John can be found here
johnavery.info/

Power_to_the_People (he/him)

Prof Steve Keen recommended this short climate film to the seminars. So glad he did - I echo his recommendation! Strong shared themes with the climate elements of his critique of mainstream econ, incl. feedback loops, tipping points, and complex systems. And yet, accessible! An important film.

#ClimateExtremes:AtTheAbyss #SteveKeen #climatechange #systemdynamics #feedbackloops #tippingpoints #amoc

youtu.be/U8pLrRkqbb0?si=smls8l

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cponsard

The MIT Team of The Limits to Growth. From left to right: Jørgen Randers, Jay Forrester, Donella Meadows, Dennis Meadows, William Behrens. 🙌🏻

Photo grabbed @Academy_Change
#SystemDynamics #systemsthinking #LTG50

Filipe

This thread is getting a lot more attention that I thought so I'm gonna explain common questions for you to feel more connected with this journey.

Why am I going to Bergen?
I'm actually going back to school! Taking a master's degree there, at UiB, in #SystemDynamics. Hope to stay for around a year? Maybe 2 or do the 2nd year remotely ☺️

#LisbonToBergen

Alexandra Thorn

Because I modified a #SystemDynamics / #SystemsDynamics diagram from StochSD for my scicomm.xyz profile, I want to take this opportunity to talk about how thrilled I was to discover StochSD (stochsd.sourceforge.io/).

If you like systems dynamics and #OpenSource tools for science and science #education, it's a great one to be aware of.

Alexandra Thorn

#introduction

Hello everyone.

I'm a lecturer at Tufts University, teaching courses in GIS, Food Systems Modeling, and Agricultural and Environmental Modeling.

My past research has included various forms of computer #modeling, including #SystemDynamics, and #GIS. I'm a strong believer in #interdisciplinary research and #stakeholder engagement as tools for improving and democratizing science.

I also once spent a year hanging out with the #STS group at Harvard, which shaped my thinking too.

CUSP :verified:

Post Growth and the North-South Divide: a post-Keynesian stock-flow consistent analysis—New CUSP working paper by Dario Leoni, Andrew Jackson and
@ProfTimJackson
cusp.ac.uk/themes/s2/wp38

cc #PostGrowth #Degrowth #BeyondGrowth PostCorissance #Decroissance #Decrecimiento #Decrescenza #ProsperityWithoutGrowth #SystemDynamics #PostKeynesian #Globalisation #Growth #Transition #GlobalSouth #NorthSouthDivide

Carlos Ariza

In "Leverage Points" Donella Meadows ranks the ways of driving change in a system, from least to most effective. "Power has less to do with pushing leverage points than it does with strategically, profoundly, madly letting go"
donellameadows.org/wp-content/ #systemdynamics #systemsthinking #leveragepoints #donellameadows #MIT #fifthdiscipline #change #systemchange #climatechange #commonearth #ecodharma

mj

A Philosophical Look at #SystemDynamics

A 1977 Video of a Donella Meadows talk, asking the question:

How can we bring ourselves to be aware of the assumptions we make as systems thinkers?

#Complexity #Science #Models #Philosophy #Economy #Limits #Growth #Sustainability #Environment #Governance @philosophy
youtube.com/watch?v=XL_lOoomRT