**Development, and growth of the fractal demonstrates the (money and Keynesian) Multiplier.**

The (Keynesian) Multiplier shows how an initial injection of expenditure
into an economic system goes on to create more income. This is because added expenditure
– in itself – sets off additional rounds of expenditure with each and every
hand or round this income passes.

This principle of 'multiplying' the initial injection can be
demonstrated by use of the fractal:

In the diagram below: income is represented by the area of each
and every triangle, and the rounds of spending by every iteration of the
rule.

The Keynesian Multiplier equals: change in income divided by change in injection.

The Fractal Multiplier thus equals: change in total area divided by change in initial area.

The (Koch Snowflake) fractal multiplier is equal to 1.6 (1.6 divided 1).

(In class) the multiplier can be demonstrated by having the students pass on (for example) 50% of a piece of sheet paper (see the below photo) careful to save the other 50%. The 1st and largest half represents the initial injection, and the 11th and smallest half (the last the paper can be divided). The iterations multiply a factor of 2 times of the 1st half.

Notes:

- From this it can be inferred or deduced – due to its principle similarity – that the multiplier effect is a universal fractal phenomena, and that the Keynesian observation stands as further evidence that fractals are our reality – that reality is best understood by understanding fractal geometry.
- It is of interest to me (the author), and of my mathematician colleague’s, that the Koch snowflake fractal multiplier is 1.6. This 1.6 is very close to (but not the same as!) the Fibonacci or Golden ratio of 1.618.

**A classroom demonstration:**
Your ideas are at least very interesting.

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