Recall that in the baseline case this resulted in a 8.9% annual return.

FORBES: Look Closer At The PEG Ratio And Apple Isn't Such A Bargain

Auto sales would decline, from the strong 14 million-unit sales pace expected in the baseline case to 13.6 million this year and 12.9 million in 2013.

FORBES: Double-Dip Recession 20% To 25% Likely If Fiscal Cliff Hits, S&P Warns

The average Trefis member forecast shows a more optimistic case than our baseline assumptions predicting that the iPod market share will increase from 24% in 2010 to 30% by 2016, compared to our estimates showing a market share stabilizing around 25%.

FORBES: The Role Of The iPod In Getting Apple To $418 Per Share

Yet whether the findings of this study serve as a baseline, there is in any case a high probability that we already know what the market will look like and how it will behave.

FORBES: Jersey Sponsorships Likely Coming To U.S. Sports