Elon Musk plans to escape to Mars. “We want to be on a path toward making true the things that we read in science fiction books and see in the movies,” he says in footage featured in Alex Gibney’s searing new documentary, “Musk.” “A future where we’re forever confined to Earth until some eventual extinction event is less inspiring.”
For much of Modern History, a Steady-State Economy (see definition below and video above) is thought of as a system state that might or might not happen at some point in the future. The history of the concept is basically that Classical Economists thought (reasonably) that economies would eventually become stationary. Neoclassical Economists, starting in the 20th Century, assume that, as a practical matter, monetized economies can grow forever, given unlimited Technological change. In the Late 20th Century, Ecological Economists viewed the economy as embedded in a Finite Natural System creating a Limit to Economic Growth.
What is missing from this Theoretical History of of the World-System are economies that are in a demonstrable steady state. For that, we need models and Systems Theory provides general models that can be used for this purpose. Neoclassical Economic models confuses Economic Stagnation with a Steady-State Economy. Stagnation is a short-run condition while the steady-state is a long-run position of systems with certain characteristics, essentially system stability. Neoclassical economic models do not have enough feedback loops to create long-run stability.
This Blog Roll presents statistically estimated models of Steady-State Economic systems:
A Steady-State Economy for Germany The German economy has basically been in a steady state since 2010. Commentators keep mischaracterizing the steady state as growth stagnation.
All these Secondary Sources are available as free pdf files.
Wikipedia Links
Steady-State Economyan economy made up of a constant stock of physical wealth (capital) and a constant population size. In effect, such an economy does not grow in the course of time.
Economic Stagnationa prolonged period of slow economic growth, typically measured in GDP per capita growth or median income growth, which is usually accompanied by high unemployment. Under some definitions, slow means significantly slower than potential growth as estimated by macroeconomists, even though the growth rate may be nominally higher than in other countries not experiencing economic stagnation.
The Great Depression of the Early 20th Century is (and was) a systemic event between World War I and World War II that has been intensely analyzed, if over-analyzed (see References below). The one viewpoint that seems to have been under-analyzed is the perspective of Systems Theory. The following is a Blog Roll of my postings on the topic:
War and Normalcy: (1914-1929) The Roaring Twenties Bubble was "popped" by the 1929 Stock Market Crash after which the US Economy returned to the long-run attractor path.
Forecasting the Great Depression in France Not easy (or maybe even possible) since France reinvented itself after WWI and responded very conservatively to the shocks of the Great Depression.
Systems Theory opens up an entirely new perspective on the Great Depression. I will keep adding posts to this Blog Roll until I think I've attacked all the issues and competing explanations.
Futures for Growth of Mexico Business-as-Usual and focus on Technical Productivity produce stable growth. Geopolitical Linkage with the World System, the US and China produce Collapse.
The World System is in Growth-and-Collapse Mode. Realistic policy measures (aside from reducing growth rates) do not seem available (see the graphic below).
Sep 17, 2026 Global Economy Is Running Out of Wiggle RoomMany countries blunted the most painful effects of the energy shock from the war in Iran. But prices remain elevated and risks are multiplying.
The World System, typically used by the IPCC to model Global Climate Change, means one macro-system explaining environmental and economic trends of the World. The World-System (notice the hyphen), a term used by World-Systems Theory, refers to a "World of Systems" in which nation states and regions form hierarchical Geopolitical relationships.**
Here are some postings I have done from the perspective of both the World System and the World-System:
Global Temperature Projections Using the World System model, Global Temperature will peak below +1.5 degrees Centigrade. Using the Kaya Model, it will not (goodbye Polar Ice Caps).
Peak Oil and Global Warming Peak Oil Production, at some time in the Future, seems reasonable but "when" is hard to predict.
World Population Collapse Both the UN and my WL20 model predict that World Population will start to collapse after 2050. If that really happens, there will be ripple effects throughout the Kaya Identity!
A New Axis of Evil Looks scary but they might be no better at running the World-System than the US.
World System Steady State and Collapse The only stable, steady state future for the World System is dominance by Europe. Right now, competition between the major Hegemonic contenders (the US, Russia and China) might not produce a steady-state Future.
Hegemonic Dominance Forecasts Dominance of the World System by Russia would lead to (1) unending exponential growth and (2) a Dystopian Nightmare.
US CO2 Forecasts Emissions are declining in the US but the best way to reinforce the trend is to let gasoline prices increase, a political non-starter.
Coal will make Reducing Energy Intensity Difficult Reducing the mining and burning of coal will be difficult and the Trump II Administration is trying to "Greenwash" the problem by rebranding it "Clean Coal," which it isn't.
World Impact Forecasts More on Impact Models, if you are interested. Impact models do not have feedback effects but they are easy to calculate by hand and maybe feedback effects are weak in the World-System.
Some of the State Space Dynamic Components models (see the Boiler Plate) for the period 1950-2000+ are available as R-code and can be run here.
The World System is in Growth-and-Collapse mode (WL20 in the graphic above from the WL203 Model). A Steady State Economy can be created by reducing (to zero) some of the Historical Feedback Controllers (instructions are available in the WL20 Code)--not a realistic policy recommendation.
Columbia IMFThe Colombian economy continues to expand with some moderation in key imbalances. After slowing sharply in 2023, the economy expanded by 1.7 percent in 2024 supported by private consumption, reflecting a robust labor market and a gradual recovery in investment.
I use my blogs to make informal comments on policy topics related to my research interests in the World-System, computer simulation of the US Health Care System, the US Economy, the US Stock Market, and the US Financial System. I am retired from the University of Wisconsin -- Madison. I have taught Statistics and Computer Science and also served on the UW's HIPAA Task Force and the Bioterrorism Task Force. I have also been a member of my local planning commission, a jazz guitarist and a golfer, so some of that may find its way into the blogs.