Regulatory change,constraints on adaptation and organizational failure: An empirical analysis of acute care hospitals

The advent of the Medicare prospective payment system (PPS) in 1983 affected individual general hospitals in varying degrees based on their revenue and cost structures. These same factors served to constrain a hospital's ability to adapt to the post-PPS environment. The three constraints are based on the proportion of the hospital's private-pay (non-Medicare/Medicaid) patients, economies of scale and economies of scope among medical services. We test the relationship between these constraints and organizational failure in the Chicago area. Hospitals selected out of the new environment (1986-91) were at a significant relative disadvantage with respect to the proposed constraints.     

INVESTORS ADJUST EXPECTATIONS AROUND SELL-SIDE ANALYST REVISIONS IN IPO RECOMMENDATIONS

In this article I compare investor response to sell-side analyst recommendation revisions of initial public offering (IPO) firms in the first three years after issue with that of a benchmark control sample of firms that have been public longer. I test whether investors in IPO firms adjust their initially optimistic expectations as information about new issues is released and uncertainty is resolved. In support of my hypothesis that investors adjust expectations downward, I find abnormally negative returns around analyst revisions of IPO firm recommendations. Additionally, I find the effect of analyst revisions on long-run performance of IPO firms is economically significant.     

Measuring strategy coherence through patterns of strategic choices

Strategies at different levels need to be coherent to ensure competitive advantage (Hofer and Schendel, 1978). Strategy coherence is the consistency of strategic choices across business and functional levels of strategy. In this paper we focus on strategy coherence. Using patterns of strategy, we develop a measure of the extent of strategy coherence. The relationship between coherence and performance is used to validate the measure. We illustrate the application of the measurement and validation process, in the context of acute care hospitals. The results indicate that our measure of coherence is monotonically related to performance. We also find performance differences between more and less coherent hospitals on the industry specific performance indicator of occupancy. Implications for theory and practice are highlighted.     

Convergence across alternative methods for forming strategic groups

We studied the convergence of three different methods for identifying group structure (strategic groups) in a single competitive environment. Using a version of the MTMM matrix, we tested the convergent validity of the concept of strategic groups in a mature, geographically delimited competitive environment. We find significant evidence of convergence between competitive structures identified using archival and perceptual data as well as those identified using archival measures of strategy and direct measures of competitors. There is limited evidence of convergence between competitive structures identified from perceptual and direct measures. Taken as a whole, these results are consistent with the emerging theory of strategic groups. We conclude that strategic groups are a theoretical construct and not a methodological artifact, as is suggested by some authors. © 1997 John Wiley & Sons, Ltd.