Error Correcting Controllers in the World-System

 

Error Correcting Controllers (ECC) are used in Control Theory to generate positive and negative feedback loops to control systems. In economics and sociology, ECCs can be generalized to describe the behavior of macro-economic and macro-social systems starting with Leibenstein's Malthusian Model:

• Malthusian Controller (Q-N) Negative feedback will result when population growth exceeds economic growth.
• Stock Adjustment (Q-K)
• Liberal Market Controller (Q-P) 
• Marxist Controller (Q-L) or (Q-wL) 
• Labor Surplus Controller (Q-LA) 
• Keynesian Controller (Q-G) 
• Environmental Controller (Q-T) 
• Mercantilism Controller (Q-X)
• Modernization Controller (N-V)
• World Price Controller (XR-X)
• Monetarism Controller  (Q-M)
• Fascism Controller (Q-War)
• Globalization Controller (WS-QP)
• Malthusian Trade Controller (N-X)
• Liberal Trade Controller (Q-X)
• Labor Surplus Controller (X-L)
• Class Struggle Controller (L-U)
• Urban Trade Controller (X-U)
• World-System Controller (WS-X)
• Ricardian Trade Controller (X-XWS)

In specific countries during specific historical periods, combinations of controllers are likely to be used. The used of an ECC or multiple ECCs does not imply that the systems is under stable control. For more discussion, see Growth and Control in the World-System. You can run the US_M model code and experiment with the model (here).