State Space Models

All state space models are written and estimated in the R programming language. The models are available here with instructions and R procedures for manipulating the models here here.

Tuesday, March 3, 2026

Perspectives on the Limits to Growth









Here are the four World3 scenarios Gaya Harrington discusses in the video: BAU (Business-as-Usual), BAU2 (Doubling NR), CT (Techno-solution) and SW (Steady-State).




Notes


Wikipedia Links

The Club of Rome a nonprofit, informal organization of intellectuals and business leaders whose goal is a critical discussion of pressing global issues.

The Limits to Growth a 1972 report that discussed the possibility of exponential economic and population growth with a finite supply of resources, studied by computer simulation.

The Limits to Growth Digital Scan of the book.

World Dynamics Digital Scan of the book.

World3 Model system dynamics model for computer simulation of interactions between population, industrial growth, food production and limits in the ecosystems of the earth. It was originally produced and used by a Club of Rome study that produced the model and the book The Limits to Growth (1972).

Doughnut Economic Model a visual framework for sustainable development – shaped like a doughnut or lifebelt – combining the concept of planetary boundaries with the complementary concept of social boundaries.

Earth4All  an initiative launched in 2022 that promotes economic systems change to achieve sustainable development and social equity within planetary boundaries. The project builds upon the legacy of The Limits to Growth report from 1972 and is convened by the Club of Rome, the Potsdam Institute for Climate Impact Research, the Stockholm Resilience Centre and the BI Norwegian Business School.

Wellbeing Economy (WEGO)  a public policy framework in which the economy is designed to serve social, health, cultural, equity and nature outcomes.

Twelve Leverage Points The leverage points, first published in 1997, were inspired by Meadows' attendance at a North American Free Trade Agreement (NAFTA) meeting in the early 1990s, where she realized a very large new system was being proposed but the mechanisms to manage it were ineffective. 




No comments:

Post a Comment