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Physical Modelling for Consistent Reasonable Thought and Stock-Price Flow Patterns
New Phys.: Sae Mulli 2018; 68: 1364~1373
Published online December 31, 2018;
© 2018 New Physics: Sae Mulli.

Sangup PARK*

Department of Nano Advanced Materials Engineering, Jeonju University, Jeonju 55069, Korea 
Correspondence to:
Received October 2, 2018; Revised October 16, 2018; Accepted October 16, 2018.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
A recognizable form having meaning is called a sign in semiotics. The sign is transformed into a physical counter form in this work. Its internal structure is restricted on the linguistic concept structure. We borrow the concept of a mathematical function from the utility function of a rational personal in the economy. Universalizing the utility function by introducing the consistency of independency on the manner of construction, we construct the probability. We introduce a random variable for the probability and join it to a position variable. Thus, we propose a physical sign and its serial changes in the forms of stochastic equations. The equations estimate three patterns (jumping, drifting, diffusing) of possible solutions, and we find them in the one-day stock-price flow. The periods of jumping, drifting and diffusing were about 2, 3.5, and 6 minutes for the Kia stock on 11/05/2014. Also, the semiotic sign (icon, index, symbol) can be expected from the equations. 
PACS numbers: 02.50.-r, 05.10.Gg, 02.50.Cw
Keywords: Stochastic equation, Stock price, Semiotics, Semantics

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