Mr Katz says factor-based models suggest trade with poor countries explains only 5% of rising income inequality.
ECONOMIST: The elusive link between trade and wage inequality
Computer models will factor in currents, weather and wind to create search patterns to focus searchers' efforts, he said.
Once they acknowledged this factor in their statistical models, it became evident that those films, by themselves, did not do any better at all.
Whale researchers use population models that factor a species' reproductive rate and its natural mortality to come up with an estimate of how many are likely dying.
Orszag thinks that economics and medicine are both beginning to take into account a factor that had been left out of scientific models for years: human behavior.
That's another factor behind the price cuts, especially since some older models in retailer inventories can't connect to the Internet, which is necessary to tap interactive features on some Blu-ray discs.
Instead, mix models only grossly estimate this value with an externally derived factor of 2X the immediate effect for the longer-term effect.
FORBES: The Downside Of Marketing Mix Models Is There's No Upside For CMOs
In cases where the game-theory models say that one would be very unlikely to appear, this new factor pushes the other way, making competition more likely than before.
And the recall of nearly a half-million Chevrolet Cruzes over the last several weeks may be one factor that has knocked down demand, although GM executives instead cite intra-brand competition from other models such as Malibu.
FORBES: Already? 2 Recalls Of New Escape Leave Ford With Egg On Face
But he suspects Jaguar and BMW will be selling passenger models equipped with KERS long before Formula One has made its power-boosting technology a decisive factor in winning races.
Whether hearing loss is truly a cause of cognitive decline or merely a risk factor associated with the ageing brain, the decline of cognitive abilities into dementia is set to explode financial models of health and social care in Western societies and requires urgent attention.
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