KindiakMath

Here are my write-ups on economics. Just like my blog posts on Theology, this set of write-ups will look vastly different from my usual math-focused writing.

This set of write-ups follows Singapore’s high school H2 Economics syllabus, with additional entries drawn from the H3 syllabus. Economics is not, at its core, a mathematical science—but the mathematics is there, tucked beneath the surface: the algebra of the multiplier, the calculus lurking behind marginal analysis, the geometry of surplus and deadweight loss, the logic of Nash equilibria. Where the maths exists, these notes attempt to surface it; where it runs thin, the focus shifts to the structure of the argument, the diagram, and the policy logic.

The aim is the same as with the physics posts: to show that the concepts students learn are not arbitrary, but rest on coherent foundations. Unlike my other posts, these posts would read more like fact-sheets than detailed expositions (which I am far from an expert in doing). And yes, I have employed Generative AI (Gen AI) to write some of these materials, including this preamble itself! Coupled with the language of mathematics, even Gen AI has become a viable tool for self-study.

Economical Markets

1. The Economics of Everything
2. The Invisible Hand
3. Demand and Supply
4. Measuring Elasticity
5. The Long Arm of the State

Firms and Efficiency

1. The Rational Firm
2. Counting Costs
3. Playing to Win
4. The Pursuit of Efficiency
5. When Markets Go Wrong
6. The State Steps In

Macroeconomics

1. The Big Picture
2. Aggregate Demand and Aggregate Supply [TBC]
3. Living Standards [TBC]
4. Things Go Wrong [TBC]
5. The Government Responds [TBC]
6. A Smaller World [TBC]

Behavioural Economics

1. Are We Rational? [TBC]
2. When Agents Misbehave [TBC]
3. The Power of Nudges [TBC]

Firms, Markets, and Sustainability

1. Game Theory [TBC]
2. The Commons Problem [TBC]
3. Hidden Information [TBC]
4. Growing Together [TBC]
5. The Green Economy [TBC]