by 68Camaro » Fri May 25, 2012 2:31 pm
Jonflyfish wrote:shinnosuke wrote:68Camaro wrote:If that really made sense, if there was cause and effect, then there should be a correlation, even if by a factor. There isn't one. It's true that changes in the USD index and changes in PM prices can be observed to occur at the same times, somewhat frequently, but too often there is zero or even negative correlation, and even when they head in a consistent direction the proportionality factors change constantly. I've been watching this for two years now and have yet to match the pattern. There is FAR more going on than just pricing.
Is there noone then who can figure out the DaVinci Code? You know how people get a kick out of telling secrets (witness the leaky cottage industry built by Julian Assange). Just wondering when some fine chap might step forward and spill the beans.
The "secret" is price itself. Nothing else is needed.
Cheers!
There's always tension between deterministic views (cause and effect are what matter) and stochastic views (the why of it doesn't matter why, it's the stats and trends that matter). I think both need to be considered, sometimes different times lead to one have more emphasis than the other. But the most powerful solution, in my view, is the one that can actually understand (not guess) big picture cause and effect details, while also being able to understand the moment by moment data trends.
Regardless, today we have a very good example of negative correlation with USD pricing. PMs are going up, while USD is also going up.
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