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Model Perspective
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Model Perspective

Insights, knowledge, and enjoyment from a mathematical modeling researcher and educator. Hosted by Haihua Wang, a modeling instructor and author of "Clever Use of Chat for Mathematical Modeling", "Modeling: The Mathematics of Thinking", "Mathematical Modeling Practice: A Hands‑On Guide to Competitions", and co‑author of "Mathematical Modeling: Teaching Design and Cases".

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Recent Articles

Latest from Model Perspective

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Model Perspective
Model Perspective
Mar 28, 2026 · Industry Insights

Why Are Biology and Geography Dropped from China’s High‑School Entrance Exam? A Structured Analysis

Recent policy changes in several Chinese provinces will exclude biology and geography from the high‑school entrance exam, prompting a detailed framework that evaluates each subject’s knowledge utility, discriminative power, timeliness, and learning cost to explain why these two subjects rank lowest in overall exam value.

Chinabiologyeducation policy
0 likes · 8 min read
Why Are Biology and Geography Dropped from China’s High‑School Entrance Exam? A Structured Analysis
Model Perspective
Model Perspective
Mar 26, 2026 · Industry Insights

Why Pet Daycare Costs So Much: An Economic Breakdown of China’s Pet Service Market

The article uses simple economic models to dissect China’s pet service market, estimating income elasticity, layering market size, calculating the minimal client base for high‑end pet daycares, and highlighting structural social trends that make pet consumption a quasi‑necessity rather than a novelty.

Income ElasticityIndustry InsightsPet Economy
0 likes · 9 min read
Why Pet Daycare Costs So Much: An Economic Breakdown of China’s Pet Service Market
Model Perspective
Model Perspective
Mar 26, 2026 · Industry Insights

Can the U.S. Secure Iran’s Oil Lifeline? A Structured Cost‑Benefit Analysis of Seizing Harlek Island

This article builds a qualitative‑semi‑quantitative framework to assess the landing, combat, and holding costs of a potential U.S. ground operation on Iran’s strategically vital Harlek Island, weighing military attrition, strategic payoff, political constraints, and public opinion.

GeopoliticsMiddle EastMilitary Strategy
0 likes · 10 min read
Can the U.S. Secure Iran’s Oil Lifeline? A Structured Cost‑Benefit Analysis of Seizing Harlek Island
Model Perspective
Model Perspective
Mar 25, 2026 · Industry Insights

How Interview Order Shapes Graduate Exam Scores: A Simple Mathematical Model

This article builds a simple additive model to explain how interview order influences graduate exam scores through reference bias and evaluator fatigue, analyzes their combined impact on candidates of different ability levels, and offers practical advice for applicants despite institutional safeguards.

BiasInterviewPsychology
0 likes · 10 min read
How Interview Order Shapes Graduate Exam Scores: A Simple Mathematical Model
Model Perspective
Model Perspective
Mar 22, 2026 · Industry Insights

Will AI Make Programmers Unemployed? A Simple Model to Assess Risk

The article examines whether AI will replace programmers or merely reshape their value, distinguishing unemployment from wage depreciation, proposing a simplified exponential decay model that combines industry replacement rate and an individual irreplaceability coefficient, and shows how judgment, business understanding, and organizational skills become critical for career longevity.

AIIndustry Insightscareer
0 likes · 11 min read
Will AI Make Programmers Unemployed? A Simple Model to Assess Risk
Model Perspective
Model Perspective
Mar 20, 2026 · Artificial Intelligence

How to Build a No‑Code AI Agent for Fast Book Summarization

This article walks through the design and implementation of a no‑code AI reading agent that parses, splits, and summarizes books chapter by chapter, explaining why the tool serves as a pre‑reading filter rather than a replacement for deep study.

AILarge Language ModelReading Efficiency
0 likes · 10 min read
How to Build a No‑Code AI Agent for Fast Book Summarization
Model Perspective
Model Perspective
Mar 16, 2026 · Fundamentals

Why Rational Partners Betray: Game Theory Behind Business Backstabbing

The article uses game‑theoretic models such as the Prisoner's Dilemma, the Folk Theorem, and information‑asymmetry analysis to show that backstabbing in business is a structurally rational choice driven by payoff incentives, discount factors, and hidden information, and it offers concrete strategies to mitigate the risk.

betrayalbusiness strategygame theory
0 likes · 13 min read
Why Rational Partners Betray: Game Theory Behind Business Backstabbing