Is there any research suggesting how well the corporate strategies of vertical

 Is there any research suggesting how well the corporate strategies of vertical integration, diversification, mergers and acquisitions, and alliances work?
Find two peer-reviewed (preferably research-based) articles addressing this issue, summarize them, and perform an analysis of them. Your initial response should be no more than 2 pages long. Be certain to cite in your analysis and include a bibliography at the end of your initial response.
Note: You are encouraged to find peer reviewed articles on as many of the topics as possible. It is understood that all topics are sometimes not covered in two articles. Try to cover as many of the topics in the question as is possible in the two articles you find.