Continuing in our periodical break from economics, we now turn again to our series in leadership where we feature a video by Simon Sinek and his Golden Circle concept. In 2009, Simon released the book "Start With Why" -- a synopsis of the theory he has begun using to teach others how to become effective leaders and inspire change. in this video, Simon has a simple but powerful model for inspirational leadership all starting with a golden circle and the question "Why?" His examples include Apple, Martin Luther King, and the Wright brothers.."