Economics Pareto Principle
There was apparently an empirical rule that the top 20% of people in a nation account for 80% of the income. This rule is known as the Pareto Principle.
kaname.hirano
Economics 
Logic The Ontological Proof of God Explained through Object Oriented Approach
The subject of this article is to understand Gödel's proof of the existence of God from an object-oriented perspective.
Paper A Quantum Mechanical Financial Time Series Model
An introduction to the author's paper "A Quantum Mechanical Financial Time Series Model".
Probability The Kelly Criterion in Gambling
This article will explain the specific calculation method of the Kelly criterion in gambling according to Kelly's paper.