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.

Wednesday, November 26, 2025

Technological Long Waves

  


The Kondratiev Wave is an important element of World-Systems Theory. The graphic above is taken from Andreas Goldschmidt and gives historical specifics for technological cycles. Goldschmidt's formulation allows for the idea to be tested (one of the models I always test), is partially consistent with economic Growth theory (particularly if we do not assume a functional form for exogenous disembodied technological change in the Solow-Swan Model) and I can present some examples.

Monday, November 24, 2025

Liberalsim vs. Neoliberalism

 


I have been trying to reconcile Liberalism with Neoliberalism and put the two within David Easton's Political System. My reconciliation is:

Neoliberalism was very specific about specifying required values for Political Outputs, Liberalism less so. However, the Liberalism positions an be "filled in" by contrast to available Neoliberal positions.

First,  I'll summarize Easton's model and then go on to expand on his Political Outputs. Finally, I'll ask what Political Inuts and Feedback have to do with Liberal and Neoliberal models.

 












Notes

ChatGPT

Feature

Liberalism

Neoliberalism

Time period

18th-19th century origins

Late 20th century

Primary goal

Broad individual freedom

Market efficiency & competition

View of the state

Limited but essential for rights

Minimal, facilitator of markets

Markets

Useful but not absolute

Central organizing principle

Social policy

Some support for welfare

Shrink welfare; use market mechanisms

Freedom

Civil and political freedom

Freedom as market choice

Attitude toward inequality

Liberties more important, but some thinkers favor moderation

Often accepts inequality as necessary



Monday, November 17, 2025

World-System (1960-present) How will a Negative Shock from the US Affect the Economy of Venezuela?


Nov 16, 2025. NBC News is reporting (here) that:

The nation’s most advanced aircraft carrier arrived in the Caribbean Sea on Sunday in a display of U.S. military power, raising questions about what the new influx of troops and weaponry could signal for the Trump administration’s drug enforcement campaign in South America.

If the US were to take some kind of military action against Venezuela (whatever the pretext), the result would be a strong negative shock to the Economy of Venezuela, which has been through many shocks in the late 20th and early 21st Centuries. According to Wikipedia (here):

An ongoing socioeconomic and political crisis began in Venezuela during the presidency of Hugo Chávez and has worsened during the presidency of successor Nicolás Maduro. It has been marked by hyperinflation, escalating starvation, disease, crime, and mortality rates, resulting in massive emigration.

The VEL20 US-input model (see the Notes below) is based on 50 years of data (1960-2010) drawn from the World Development Indicators (see the Boiler Plate). Without knowing the extent of the shock or whether it might actually happen, we can at least assume that the shock will be negative and ask how the economy has behaved to a large, standardize shock in the past.

The graphic above shows a one standard deviation negative shock (Impulse Response) to the state of the Venezuelan Economy transmitted from the US (see the Measurement Models in the Notes below):

  • The First Column shows the effect of a negative shock from US Overall Growth (US1) to (1) VE1, Overall Growth in the Venezuelan Economy (continuing negative effect), (2) VE2, the GDP-Unemployment Controller (continuing negative effect) and (3) VE3, the Environmental Controller (temporary positive effect).
  • The Second Column shows the effect of US Financial Markets (US2) on (1) VE1, Overall Growth (temporary positive), (2) VE2, Unemployment (continuing positive effect) and (3) VE3, Environmental (continuing negative effect).
  • The Third Column shows the effect of US Globalization (US3) on (1) VE1, Overall Growth (permanent negative), (2) VE2, GDP (continuing negative) and (3) VE3, Environmental (continuing negative).
The overall effect, as might be anticipated, of US military action would be very negative for the Economy of Venezuela, one more negative shock in a long history of negative shocks. The Trump II Administration would probably argue that, in the long run, the effects would be positive if the illegitimate Administration of President Nicolás Maduro were ended. Everything depends on what would happen after any military action and no one knows the future.

One possibility (which seems unlikely) is that Venezuela would return to Business-As-Usual with a competent Centrist, technocratic Administration. You can experiment yourself with the VEL20 BAU model (here) and explore various scenarios.

Notes

For more information on other Geopolitical Options, see the Venezuelan Blog Roll (here). For more information about how the Dynamic Component State Space models were constructed, see the Boiler Plate.

VEL20 Measurement Model



USL203 Measurement Model



VEL20 US Input System Matrices






 


 

Friday, November 7, 2025

World System, Economic Systems, Political Systems and Neoliberalism

 



I've always been both impressed and confused by David Easton's model of the Political System: Impressed because of the System's Perspetive and Confused  because it does not seem to match my concrete experience with the Political System in the US which right now seems to be dominated by Neoliberalism. In the post, I'm going to put the two ideas together and sort out the result.































Notes

ChatGPT Definitions

Political System


Economic System


Neoliberalism