Where do innovations come from? List as many possible sources as you can, providing examples

Sources of Innovation
 Need Pull – This source of innovation comes when there is a real problem without any solution.
For example, Cargo pants were invented for military people so that they can carry military
ammunition and food and other things
 Low cost innovation – Some product has potential of attracting large market but fail due to their
prices. For example, Southwest Airlines is the low cost leader
 User led Innovation - Users post their feedback, complains and reviews in many platforms and
companies can find business opportunity in them. For example,...