Just how much wealth are there in the world?
It has ballooned over the last few years. Taken from the CIA world fact book 2010:
First we need an annual Global income to do the maths:
A) GDP at PPP:$70.21 trillion (2009 est.)
B) Key commodities:
i) Oil reserves: 1.343 T Barrels @ 74 USD/barrel roughly equals to 100 T USD
ii) Gas reserve: 177.4 T cu m @ 5.50 USD/ cu m roughly equals to 1000 T USD
iii) Gold: 161000 tons = 4.7 M troy ounces, @ 1100/oz roughly equals to 5.2 B USD
C) Equities:
Publicly traded shares: $64.99 trillion (31 December 2007)
Privately held: Well, this is a little tricky. Total Private consumption is around 60% of GDP, of which, some of them are "produced" by the 65 T publicly traded companies (let's assume their ROE is 5%, which means they generate roughly 3.25 T of returns/incomes for investors annually)70 T * 0.6 - 3,25 T = 38.75 T, and again, let's assume they have ROE of 5%, gives the whole value of the privately held companies a whopping price tag of 775 T USD!
D) Debts: $56.9 trillion (31 December 2009 est.)
E) Real Estate: This is a little tricky. There are commercial, residential and public real estate, as well as land and sea (well, there might be deep sea oil underneath!).
If I just assume wherever we live+work in is worth 6X of the annual income (GDP), we can arrive at 420 T USD for the world's real estate value.
Land is certainly wealth but let's focus on the more readily "marketable" securities" only.
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Obviously this is a very crude estimate of the world's wealth, let's tally it up nonetheless:
B+C+D+E
2417 Trillion Dollars!
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