Contestable Markets: Amazon v You Tube

Thanks to tutor2u for finding this video
http://www.tutor2u.net/economics/blog/contestable-markets-amazon-v-you-tube?utm_medium=email&utm_campaign=Economics%20daily%20digest%20Thu%2012th%20May%202016&utm_content=Economics%20daily%20digest%20Thu%2012th%20May%202016+CID_c7a7eb39e88073cc9e0cd065ea19f533&utm_source=CampMonitor&utm_term=Contestable%20Markets%20Amazon%20v%20You%20Tube%20Everyone%20and%20his%20Mum%20is%20trying%20to%20get%20into%20online%20video%20Amazon%20is%20launching%20a%20new%20service%20allowing%20users%20to%20upload%20content%20in%20the%20early%20stages%20of%20what%20is%20likely