I also would like to hear some investigations about serial startups. For example the Samwer brothers are doing it successfully again and again. The recipe: copy

I also would like to hear some investigations about serial startups. For example the Samwer brothers are doing it successfully again and again. The recipe: copy successful US-only startups/companies in europe. Another example: Richard Branson aka Virgin Group. I cannot get his recipe nailed down, but his biographical book is called "Screw It, Let's do It".