Apple’s highly-focused approach means that it spends a smaller percentage of its revenue on research & development than almost any other tech company. But it ramped up R&D spending significantly in its most recent fiscal quarter.

The WSJ noted that Apple increased its R&D spend by 15% in the quarter ending in July, hitting a total of $11.2B for the 12-month period. Things get more interesting, argues the paper, when you view it in percentage terms …

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