Readiness of countries and success factors for internet start-ups

What is the state of research (research gaps) on how to best determine the e-readiness of a country? What factors are analyzed? What methods used? What different models or approaches are and have been used? (200 words)

What is the state of research (research gaps) on what factors determine the success for an e-commerce (b2c) internet start-up?
What factors? What different models or approaches are and have been used? (200 words)

Is there a model summarizing both e-readiness and e-commerce success factors in order to determine whether or not a start-up will be successful in different countries? (100 words)