Do you intend to take an average of whatever you use over an entire country. I say if you do that the result is a worthless statistical delusion. I think you should use 12 groups. Since we know the distribution of wealth and incomes are skewed don't use equal groups. I decided on a system derived from Sturgeon's Law.
90% of everything is crud.
Apply Sturgeon's Law 3 and you get 4 groups, 90%, 9%, 0.9% and 0.1% Now that 90% group is too big to give meaningful information so split it into 9 groups of 10%. So we need to know the average income and net worth in each of the 12 groups. The economists usually use quintiles, 5 groups of 20% each. Like there isn't a big difference between the top 1% and the 19th%. That group is so big and the wealth within it so concentrated that averaging it is meaningless.
If the purpose of knowing standard of living is to determine economic policies why not establish a policy of making sure everyone understands accounting? How everyone plays the economic power games year after year affects the future state of the standard of living regardless of how you measure it.
http://www.totse.com/en/politics/economic_documents/economicwargam179613.html
psik
90% of everything is crud.
Apply Sturgeon's Law 3 and you get 4 groups, 90%, 9%, 0.9% and 0.1% Now that 90% group is too big to give meaningful information so split it into 9 groups of 10%. So we need to know the average income and net worth in each of the 12 groups. The economists usually use quintiles, 5 groups of 20% each. Like there isn't a big difference between the top 1% and the 19th%. That group is so big and the wealth within it so concentrated that averaging it is meaningless.
If the purpose of knowing standard of living is to determine economic policies why not establish a policy of making sure everyone understands accounting? How everyone plays the economic power games year after year affects the future state of the standard of living regardless of how you measure it.
http://www.totse.com/en/politics/economic_documents/economicwargam179613.html
psik