Friday, May 8, 2026

World (1900-1950) British Climacteric or Growth and Collapse?

 




Notes




UKL19 Measurement Model

Three component state variables of the UKL19 Model explain 100% of the Variation in the indicators: UK1 = (Overall Growth), UK2 = (XREAL+X-L-HOURS-UExport-Employment Controller and UK3 = (X-XREAL-Q-N) Malthusian Export-Price Controller.

UKL19 Time Plot


Overall growth in the UKL19 model continued through the Nineteenth Century and may or may not have been approaching a steady state around 1900. The Export-Employment and Malthusian Export-Price Controllers hit a minimum just before 1860  (see the Boiler Plate for a discussion of Historical Growth Controllers).

UKL19 BAU Forecast



AIC Statistics




All the models estimated from the Maddison Data Set are unstable (see the Boiler Plate). The best short-term (year-to-year) model is linkage to Western Europe (WEL19 Model) . The best Attractor Model is linkage to the US (USL19 Model) The Random Walk (RW) and other models have overlapping AIC Confidence Intervals.

UKL19 BAU System Matrix


The model is unstable and is very close to a Random Walk (RW).

ChatGPT


Google Gemini






Tuesday, May 5, 2026

World-System UK Counterfactual (1800-1950) No WWI, Great Depression or WWII

 


There is no simple explanation for why the Early 20th Century was so catastrophic for the World System: World War I (WWI), the Great Depression (GD) and World War II (WWII), all in a row, all followed by a series of minor wars, crises and unresolved problems until the Present. 

Imagine that you were British inventor, physicist and engineer Archibald Montgomery Low (1888-1956) and you had heard about George Vacher de Lapogue predictions about growth and catastrophe in the 20th Century, but you found them a little wacky.** So you produced the graphic above (based on mental models, mathematical equations and speculation) predicting the path of British Development for the first half of the 20th Century to check de Lapoque's predictions. Each Attractor Path was based on a different Geopolitical Alignment:
  • WE
  • BAU
  • DE
  • RW
  • US
  • W



Notes

**  Archibald Montgomery Low (1888-1956) produced many accurate and many not so accurate forecasts. He did not forecast World War I, the Great DepressionWorld War II or any future Geopolitical Alignments for Great Britain. George Vacher de Lapogue, however, did based on exponential growth and theories of White Supremacy (needless to say, we are still dealing with White Supremacy in the Trump Administration and these problems never seem to go away).

Wikipedia


UKL19 Measurement Model

Three component state variables of the UKL19 Model explain 100% of the Variation in the indicators: UK1 = (Overall Growth), UK2 = (XREAL+X-L-HOURS-U) Export-Employment Controller and UK3(X-XREAL-Q-N) Malthusian Export-Price Controller.

UKL19 Time Plot


Overall growth in the UKL19 model continued through the Nineteenth Century and may or may not have been approaching a steady state around 1900. The Export-Employment and Malthusian Export-Price Controllers hit a minimum just before 1860  (see the Boiler Plate for a discussion of Historical Growth Controllers).

UKL19 BAU Forecast



AIC Statistics




All the models estimated from the Maddison Data Set are unstable (see the Boiler Plate). The best short-term (year-to-year) model is linkage to Western Europe (WEL19 Model) . The best Attractor Model is linkage to the US (USL19 Model) The Random Walk (RW) and other models have overlapping AIC Confidence Intervals.

UKL19 BAU System Matrix


The model is unstable and is very close to a Random Walk (RW).

ChatGPT


Google Gemini





Friday, May 1, 2026

What is the Best Counterfactual for the Long Ninteenth Century?





The possible victory of Germany in World War II (WWII) is the standard counterfactual for the Long Nineteenth Century (see the Notes below and the video above). Although interesting, I'm not sure it's the best counterfactual, at least from the standpoint of World-Systems Theory (WST).

From the WST perspective a more interesting counterfactual is "What If WWI, the Great Depression and WWII had never happened". What would the history of Long Twentieth Century have been?

If we have systems models of the major countries in both the 19th and 20th Centuries, we can forecast the 19th Century models into the 20th Century to create an alternative history where WWI, the Great Depression and WWII never happened. When then compare the actual paths of the comparable 20th Century models to see what was actually different.

One possible problem is that the data for the 19th Century, the War and Inter-War Periods are not great for most countries in the World-System. However, what we can do is focus on the estimated Systems Models which do show variability across the major countries over the time period (0-2000+, see examples here).

In future posts, I will start with the World System (WL19 and WE20) and then go on to the other major countries in the Long Nineteenth and Twentieth Centuries (Germany, the UK, France, the US, Italy, Japan, Russia, etc.).

I have already started with some countries, for example France as an example (here). From the FRL19 model, it turns out that the Great Depression and possibly the collapse during WWI can be predicted in France from 19th Century data. The same is not the case for the DEL19D Model (Pasdirtz, 1981).



Notes




Friday, December 26, 2025

World-System French Counterfactual (1800-1950) No WWI, Great Depression or WWII


Dec 24, 2025. The New York Times is reporting (here) that "for the second consecutive year ...[France has failed]... to agree to a new national budget by the end of the legislative calendar." It is difficult to understand what is going on in France without some historical background, specifically how France responded to World War I and the Great Depression. ChatGPT reports that 

In this post, I am going to use France's economic statistics in the Long 19th Century to forecast France's economic performance in the early 20th Century. The multi-model forecasts based on different input assumptions for the FR19 Model are presented in the graphic at the beginning of this post. The results are somewhat surprising!

I looked at the following possible drivers for the French Economy: (1) None (Business-as-Usual, BAU, and Random Walk, RW), (2) Technical Productivity, TECHP, (3) the World System (W), (4) Western Europe (WE), (4) Germany (DE) and the United States (US). The best model, using the Akaike Information Criterion was US input ([-1215 < AIC-1138 < -1077]). All the models were unstable (some were cyclical, see the Eigenvalues below in the Notes with the AIC Statistics) and  collapsed (except the RW) at some point in the Early 20th Century. 

At first, you might think that the models are predicting the Great Depression. They are not!** We know from the historical record that the French Economy did not collapse as a result of shocks from WWI, the Great Depression and WWII (according to ChatGPT, in any event).

Then, how are we to understand the forecasts from the 19th Century Models? To understand the French Economy in the 19th and early 20th Century, we have to look back further before the first (1878-79) and the second (1848) French Revolutions. I'll do that in future posts.

For this post, let's take the German perspective as embodied in the Schlieffen Plan to invade and neutralize France before the First World War. Assume (counterfactually) that Field Marshall Alfred von Schlieffen had output from the FR19 BAU model (here) or at least understood that France was a collapsing power. The idea of a lightning first strike to neutralize France before fighting Russia on the Eastern front would seem attractive and necessary. 

Of course, everything changed for France after WWI, during the Inter-War Years. France reacted very conservatively to the Great Depression and stabilized the economy (or at least turned it into a Random Walk).

Returning the present Budgetary Crisis in France, it would be reasonable to predict that any fundamental changes would require formation of a New Republic (see history here). A budget crisis is, historically, not significant enough to trigger major political change.

You can stabilize the FR19 BAU model with instructions in the code (here). For more information about data sources and how the models were constructed, see the Boiler Plate. You can follow a Blog Roll of other postings I have done on the French Economy here.


Notes

** This may be too fine a point. The  FR19 Model is characterizing the French Economy as in Growth-and-Collapse mode after 1900. And, Growth-and-Collapse was  certainly a factor as\s France faced WWI, the Great Depression and WWII. The historical events of the early 20th Century, however, are more complicated than the state of the French economy. There is no simple monocausal explanation.

FR19 AIC Statistics

The Akaike Information Criterion statistics show that (1) all the models were unstable and (2) the best model was input from the US19 BAU model.


FR19 Measurement Model

Three components from the FR19 BAU model explain almost 100% of the variance in the indicator variables. The components are (1) FR1=(Overall Growth), (2) FR2=(0.5633 Q + 0.5979 X - 0.2781 N - 0.4070 HOURS) Malthusian Export Employment Controller, and (3) FR3=(0.75876 XREAL - 0.3849 X - 0.4924 HOURS) Export-Price Employment Controller.

FR19 System Matrix


The FR19 BAU System matrix is unstable with two strong negative feedback components, F[1,3] = -0.05130896 and F[2,3] = -0.05297408, both from the Export-Price Employment Controller (recall that World Trade Collapsed during the InterWar years).






Saturday, December 20, 2025

World-System (1800-1900) How did Latin America Respond to Shocks?

 



In an earlier post (here) I investigated whether Latin America, in the 19th Century, benefited from the Monroe Doctrine. As a Geopolitical Alliance, Latin America benefited slightly from US intervention up to the 1880s, but not after that. However, the Monroe Doctrine was designed to minimize European influence in Latin America. One way to operationalize "interference" is to ask how the LA_19_US_input model handled shocks compared to the LA_19_WE_input.

In the 19th Century, interference in Latin America from Western Europe, the UK and the US is best viewed as a Random Walk.

A one standard deviation shock LA Growth (LA1) had effects extending out over about a half decade (see the graphic above). However, the Western European shocks were initially negative, meaning that growth in Western Europe depressed Latin American Growth. All the effects are small compared to the size of the shock. 



In fact, the AIC statistics above shows that Growth Shocks are best viewed as a Random Walk. For comparison, the three models are presented below.


Notes

LA_19_US_Input Model



LA_19_WE_Input Model



LA_19_UK_Input Model




LA_19_MM



US_19_MM



WE_19_MM



UK_19_MM








Thursday, December 18, 2025

Did Great Britain Stabilize the World System in the 19th Century?

 



The role of the British Empire in the 19th Century (map in the Notes) was an important part of the Minsky-Kindleberger Framework for understanding the events of the Early 20th Century.

The Explanation of this book [...Charles Kindleberger (2013) World in Depression, 1929-1939...] is that the 1929 depression was so wide, so deep and so long because the international economic system was rendered unstable by British inability and United States unwillingness to assume responsibility for stabilizing it...(pps. 291-292)

The qualitative Minsky-Kindleberger Framework (M-K) can actually be tested using Systems Theory and I will present some of the results in this post. The M-K Framework is important because it is the only explanation of the Great Depression that looks at the entire World-System.

To test the M-K Framework, I compared the Growth Component (W1) from four different World System models: (1) W19 BAU, Business-As-Usual, no Geopolitical Inputs, estimated from (1800-1900) and then forecast into the 20th Century, (2) W19 UK-Input, Geopolitical Inputs from the "declining" UK Hegemonic Leader (3)  WE20 BAU, estimated from 1900-1950, and (4) WE20 RU-Input, input from the RU20 model.**

The outputs from the models are graphed at the beginning of this post. Both the W19 BAU and the W19 UK-Input models produce collapse, supporting the M-K Framework. The WE20 models produce steady states around 1950. The  WE20 BAU model peaks after 1950 and the  WE20 RU-Input model peaks after the Great Depression, and then stabilizes around 1950.



I've added the W19 US-Input model to the graph above. It too would have stabilized the World System but at a lower level of growth.***

These results add to the M-K Framework the definition of Systemic Stability. The World System during the early 20th Century was unstable. The Hegemonic Leader, Great Britain,was collapsing and could not provide stability. The emerging Hegemonic Leader, the US, was not yet a World Power but could have stabilized the system if it had not been preoccupied with the Great Depression. Russia could have also stabilized the system but was preoccupied by the Russian Revolution.****


Notes 

** The WE20 RU-Input model was discovered by estimating models with inputs from all the WWII participants. It is interesting because it stabilizes the World-System during the Great Depression as does the WE20 US-Input model. None of the other models create stability (see the AIC Statistics below).

*** Note that none of these models forecast the  Great Depression. I've dealt with that issue here and here. The Great Depression was the result of an Economic Bubble created by recovery from WWI. The Bubble was popped by the Stock Market Crash of 1929.

**** I should also point out that Germany, as the instigator of the World Wars, was also unstable (see Late Nineteenth Century Development in Germany).


For information about data sources and how the models were constructed, see the Boiler Plate.


Declining British Empire

The British Empire lasted from the Late 16th to the Early 20th Century.


The map above shows the growth of the British Empire over time (from Jorstrand17).


W_19 BAU Model

The W_19 BAU model was estimated from 1800-1900. It can then be forecast out to 1950 to see, counterfactually, what would have happened in the early 20th Century if WWI, the Great Depression and WWII had never happened.


Measurement Matrix 

The Measurement Matrix for the W_19 BAU model shows the weights given to each indicator variable. The state variables components are: (1) W1 = (Growth-T) an environmental growth controller explaining 92% of the variation in the indicators. (2) W2 = (T-XREAL+Q+L) an environmental-export employment controller explaining an addition 7% of the variation. (3) W3 = (XREAL -Q - T) A Real Export-Economic growth controller explaining another 0.3 % of the variation.

There are three other state variables that are interesting but explain little variance: (4) W4 = (X - XREAL) Export Prices, (5) W5 = (Q - N - X) Malthusian Exports and (6) W6 = (N - L - Q) Malthusian Employment.


System Matrix

You can run the W_19 BAU Model here.

The System Matrix for the W_19 BAU model has three unstable roots and, as can be seen from the graphic at the beginning of this post, the W19 model collapses in the early 20th Century. The collapse is the result of negative feedback loops especially from W2 = (T-XREAL+Q+L), environmental-export employment controller, to W1 = (Growth-T), the environmental growth (the coefficient is F[1,2] = -0.020318992).


W_19 UK-Input Model

Systems Matrices




W_E20 BAU Model

Measurement Matrix 


System Matrix



W_E20 RU-Input Model



W20 US-Input Model



W_19 AIC Statistics


W_20 AIC Statistics







 


China (1800-1943) Rise to Power