But it is still much less than the U.S., even as the U.S. economy stagnates.

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They are still much less likely to collect mobile data (only 19% of those surveyed collect it), and social media data (35%), than they are to collect traditional customer survey data on demographics (74%), usage (60%), and attitudes (54%).

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Bangladeshis or Somalis should be much better off in 50 years' time than they are now, but they will still be much less prosperous than the average American or western European is today.

ECONOMIST: Economics focus