Viscoelastic or Viscoplastic Theory (VGT 84): A Comparison Study of the Influences on the Gross Domestic Product (GDP), Inflation Rate, and Consumer Price Index (CPI) in the USA Resulting from Consumer Psychological Reactions and Spending Behavior Changes over 9-Quarters During the COVID-19 Pandemic Period from Y2020Q1 to Y2022Q1 Based on GH-Method: MathPhysical Medicine, Especially the VGT Energy Tool (No. 674)

Abstract

Gerald C Hsu

The author is a mathematician and engineer who has conducted medical research work over the past 13 years. Thus far, he has written 670 medical research papers. Beginning with paper No. 578 dated 1/8/2022, he wrote a total of 80 medical research articles using the viscoelasticity and viscoplasticity theories (VGT) from physics and engineering disciplines on 80 different medical problems with their associated data. These papers aim to explore some hidden biophysical behaviors and provide a quantitative understanding of the inter-relationships of a selected medical output (symptom) versus either singular input or multiple inputs (root causes, risk factors, or influential inputs). The hidden biophysical behaviors and possible inter-relationships exist among lifestyle details, medical conditions, chronic diseases, and certain severe medical complications, such as heart attacks, stroke, cancers, dementia, and even longevity concerns. The chosen medical subjects with their asso- ciated data, multiple symptoms, and influential factors are “time-dependent” which means that all biomedical variables change from time to time because body living cells are dynamically changing. This is what Profes- sor Norman Jones, the author’s adviser at MIT, suggested to him in December 2021 and why he utilizes the VGT tools from physics and engineering to conduct his medical research work since then.

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