Ritical Analysis and Discussion on Australian Income Tax Law (details as in order instructions)

The full topic:
There is no immutable law of nature, which predicates a concept of fair taxation, although there seems to be consensus with 18th century view expressed by Adam Smith in Wealth of Nations, that taxes ought to be fair, efficient and simple. Economic criteria require that taxes should also be neutral; that is,consumption and investment decisions will be altered by tax impacts.”
By providing examples in Australia, discuss to what extent,if any, the Australian income tax system enshrines the concepts of fairness, efficiency, simplicity and neutrality? In this regard how could the Australian legislature effectively improve the present income tax system? How effective have the Australian courts been in enforcing the basic canons of taxation expressed by Adam SMith and others?

Other instructions:

Any endnotes and footnotes are included in the word count of 1500 words. References/bibliography not included.

1Style:

The MULR Australian Guide to Legal Citation at ato.gov.au