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1. www.armstrongeconomics.com › armstrongeconomics101Brenner & Kondratieff Waves v Economic Confidence Model

   www.armstrongeconomics.com › armstrongeconomics101

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   2023年3月25日 · Kondratieff and Brenner followed agriculture/commodity prices when agriculture accounted for 70% of the GDP pre-20th century. That only began to decline from 1850 forward, dropping to 40% by 1900 as the Industrial Revolution emerged with the invention of the steam engine. Then there was climate change.

2. www.armstrongeconomics.com › armstrongeconomics101 › trainingOur Extreme Long-Term Model Forecasting Tools

   www.armstrongeconomics.com › armstrongeconomics101 › training

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   2023年1月13日 · When FAX became common, we moved to that delivery system and that brought the costs down dramatically. Today, it is email and that is all free. So that is why we became the largest institutional adviser.