Our judgment is that relentlessly returning efficiency improvements and scale economies to customers in the form of lower prices creates a virtuous cycle that leads over the long term to a much larger dollar amount of free cash flow, and thereby to a much more valuable Amazon.com.

If everything you do needs to work on a three-year time horizon, then you're competing against a lot of people. But if you're willingto invest on a seven-year time horizon, you're now competing against a fraction of those people... Just by lengthening the time horizon, you can engage in endeavors that you could never otherwise pursue. At Amazon we like things to work in five to seven years. We're willing to plant seeds, let them grow-and we're very stubborn. We say we're stubborn on vision and flexible on details.

At Tatas, we believe that if we are not among the top three in an industry, we should look seriously at what it would take to become one of the top three players.. or think about exiting the industry.

We want to make money when people use our devices-not when people buy our devices. We think this aligns us better with customers. For example, we don't need our customers to be on the upgrade treadmill. We can be very happy to see people still using four-year-old Kindles!

Most big technology companies are competitor focused. They see what others are doing, and then work to fast follow. In contrast, 90 to 95 percent of what we build in AWS is driven by what customers tell us they want.

I don't think that you can invent on behalf of customers unless you're willing to think long-term, because a lot of invention doesn't work.If you're going to invent, it means you're going to experiment, and if you're going to experiment, you're going to fail, and if you're going to fail, you have to think long term.