By Dave Anderson:
Mark Thoma catches an interesting article on the reliability of US corporate finace data:
Deviations from Benford's law have increased substantially over time, such that today the empirical distribution of each digit is about 3 percentage points off from what Benford's law would predict. The deviation increased sharply between 1982-1986 before leveling off, then zoomed up again from 1998 to 2002. Notably, the deviation from Benford dropped off very slightly in 2003-2004 after the enactment of Sarbanes-Oxley accounting reform act in 2002, but this was very tiny and the deviation resumed its increase up to an all-time peak in 2009....
I looked at Benford's law for three industries: finance, information technology, and manufacturing. ... [shows graphs] ... While these time series don't prove anything decisively, deviations from Benford's law are compellingly correlated with known financial crises, bubbles, and fraud waves. And overall, the picture looks grim. Accounting data seem to be less and less related to the natural data-generating process that governs everything from rivers to molecules to cities. Since these data form the basis of most of our research in finance, Benford's law casts serious doubt on the reliability of our results...
The game is fixed and our elite overlords are happy to continue to get their skim from the everpresent 401(K) incomef stream as us dupes have to go to the casino with the loaded dice.
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