Here&#x27;s an article by Horace on Aymco in 2012 on this same subject [1]. Back then Apple was spending just north of $600 million a quarter on R&amp;D (in 2011, which is when he had figures for). Since then to reach $8 billion a year, Apple would have had to increase spending by over %30 per year. That&#x27;s a very impressive ramp up in spending, especially when sustained over a substantial period of time.<p>The thing is their revenue growth has been so spectacular, it&#x27;s swamped their otherwise dramatic increase in investment in R&amp;D on a proportional basis.<p>[1] <a href="http:&#x2F;&#x2F;www.asymco.com&#x2F;2012&#x2F;01&#x2F;30&#x2F;you-cannot-buy-innovation&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.asymco.com&#x2F;2012&#x2F;01&#x2F;30&#x2F;you-cannot-buy-innovation&#x2F;</a>