The Best and Worst Investments of 2014

Bitcoins are generated by miners who are rewarded in bitcoin for processing transactions by making complex calculations. Illustration by Tom Hall

(This version corrects the description of the AllianceBernstein All Market Real Return Portfolio's top holdings.)

To lose money in the markets in 2013, you had to really try. Three-quarters of the world's stocks rose, by an average of 42 percent. The S&P 500 jumped 30 percent.

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