how much "ownership" does that correspond to - in percentage of property ? in percentage of stock market ownership ? in percentage of ownership of the total world economy ? in money ? how is this money used ?

any other statistics you know revolving around this ?
regarding world population inequality between the top 0,001 percent, and 90 percent of the "least rich" population ?
what about "power" in terms of "decision making entities" ?
certain companies, or governments have huge powers, but who truly has an influence on them ?
is the 0,001 richest percent who owns 1000 times more then the bottom 90 percent in control of these companies and governments ?

As to equal the "richness" of the "3000 richest american people",
it would require 270 000 000 000 ( 270 billion ) people as rich as one of the ( so called ) richest populations on earth ?

How many times richer are the 3000 richest americans, compared to 3000 of the richest non-americans ?

In addition to link below, some googling leads me to the following pdf , in relation to "superclass" :
How can one talk of a "market" when a few people own 1000 times more financial power then almost all the rest ?  
Is it in their interest to keep or make people poor ? 
Not to become richer, but to keep control ?

http://cognitivedissonance.tumblr.com/post/2345941801/plutocracy-reborn-u-s-wealth-inequality-gap-largest

excerpt :

 In 1928, one year before the global economic collapse, the wealthiest .001% of the U.S. population owned 892 times more than 90% of the nation’s citizens. Today, the top .001% of the U.S. population owns 976 times more than the entire bottom 90%.