Strategic group stability: evidence from the health care industry.

To better understand strategic group stability and the associated mobility barriers concept, we surveyed health care administrators on their reasons for remaining in their current strategic group. We offer administrators' responses to the strategic group stability (mobility barrier) question. Decision-makers may be unaware of these cognitive biases (e.g., group-level world-view and resource similarity) and may not recognize the extent to which they are reducing their strategic alternatives.