Rob Fuller comments on the combined Anthem and Cigna, and how the merger presents a very large problem in the commercial markets.  He goes on to explain that “the companies will have some efficiency arguments if they’re challenged on that issue, particularly on things like analytics, underwriting and other background functions.” Experts said another regulatory hurdle that both deals likely would have to clear is how they would affect competition in public health insurance exchanges established under the health care reform law.

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