Addenda for “U.S. Surplus Growth is Debt-Fueled”
This analysis formalizes the argument presented in Ednaldo Silva's post "U.S. Surplus Growth is Debt-Fueled: Investment Stagnation is the Core Malaise."
Sara Sardar
Data scientist with mathematical background and experience developing NLP systems that translate business needs into AI solutions. Sara Sardar is part of EdgarStat’s IT team.
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Additional Steps to ECM and ARDL
Ednaldo Silva’s blog dated August 21, 2025, contains three sequential equations about the profit rate. My purpose is to demonstrate the connection between his logarithmic 2nd equation and the 3rd equation, referencing the ECM and ARDL econometric models. I used the same econometric reference he cited and adopted some notations of the textbook by Dimitrios Asteriou and Stephen Hall.