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seen Aug 12 '11 at 9:58

Aug
12
comment How did bans on short-selling affect the derivatives markets?
"with respect to the question how important hedging with linear instruments really is for market makers." This was the part I was trying to address - the short selling bans had little impact on the ability of market makers to hedge. By all means add it as a comment if you feel it better belongs there.
Aug
12
answered How did bans on short-selling affect the derivatives markets?
Aug
10
answered What are the best sources for equity quantitative research?
Jun
30
awarded  Teacher
Jun
30
answered Variable Selection in factor models
Apr
19
comment Strategy of Renaissance Technologies Medallion fund: Holy Grail or next Madoff?
There's a very long, multi-year post on Nuclearphynance about Renaissance. It's all pure conjecture, of course, but there are some grains of interesting information in there. link