Amare is currently ranked #12 and Carmelo #25. At PER 20.68 Carmelo is currently a "borderline" all star. Melo looks to be rebounding quite well and that helps a team win. He did help lead Syracuse to a National Championship as a freshman— which might be a indication of future ability to raise the level of team play when in a supporting environment.

I can only conceptualize that for a trader it would be how efficient he performs within the boundaries of time, risk, trade size, contribution to portfolio winning percentage, etc. and all those advanced measures you experts use.

The basics of shot selection
, defensive play and positioning, "hustle", and judicious leveraging of innate abilities are pretty important in basketball.

The Player Efficiency Rating is ESPN Insider writer John Hollinger's all-in-one basketball rating, which attempts to boil down all of a player's contributions into one number. Using a detailed formula, Hollinger developed a system that rates every player's statistical performance

All calculations begin with what is called unadjusted PER (uPER).

Once uPER is calculated, it must be adjusted for team pace and normalized to the league to become PER: This final step takes away the advantage held by players whose teams play a fast break style (and therefore have more possessions and more opportunities to do things on offense), and then sets the league average to 15.00. Also note that it is impossible to calculate PER (at least in the conventional manner described above) for NBA seasons prior to 1978, as the league did not keep track of turnovers before that year.

George Parkanyi responds:

 It depends on how many people are directly or perhaps indirectly contributing to the final decision of a trade. For example, how many people have a touch in your organization Victor before you make the final decision to trade or implement a trading program? - research/set-up, analysis, programming, execution, and so on … Any one of the these factors could impact the success (profit) or failure (loss) of the trade.

Steve Ellison comments: 

"What is missing from formulas like Berri's is an account of what Anthony does to the rest of the Nuggets."

There is a hockey statistic called plus/minus to help assess exactly that. Every player on the ice when his team scores gets a plus one. Every player on the ice when the opponents score gets a minus one. The results are cumulative. A player who does not score much but has a high positive plus/minus total is presumed to be doing something right.

Victor Niederhoffer inquires: 

How could this immediately be applied to markets ? There are players on a team also. But rather than simply adding, would a regression work better?

Steve Ellison responds: 

 One might consider various market "players" and what happens when they are visibly "on the ice". For example, when the President is speaking, does the market go up or down? When the Mayor's news feed features the Sage, does the market go up or down?

Victor Niederhoffer writes: 

I would conceptualize that the other players on the team are the other markets. how often does the stock market , create wins for the oil market et al, and for the grains, and are there leads and lags?

T.K.marks comments:

Anecdotal evidence has long had it that the oft-retired Michael Jordan was the ultimate basketball player in terms of making teammates better players. Apropos of the discussion here, it's been suggested that his talent in that regard was not limited to the court, but instead, cross-market in its scope.

From Wikipedia:

"…Jordan's yearly income from the endorsements is estimated to be over forty million dollars… An academic study found that Jordan’s first NBA comeback resulted in an increase in the market capitalization of his client firms of more than $1 billion…"

The journal in which the study is found is a subscription so I'll take Wiki's word for it. Though it would be nice to know by comparison what the overall market cap did during that same time frame.





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