OBJECTIVE To apply the economic theory of economies of scope to the home healthcare industry. DATA SOURCES Data on 488 observations obtained from the Cost Report (HCFA Form 1728-86) of all Connecticut state-licensed, Medicare-certified home health agencies. STUDY DESIGN The Cost Report was the primary source of data for this study. Information on total cost, scope, and other related factors...

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We propose a formal system for representing the available readings of sentences displaying quan-tiier scope ambiguity, in which partial scopes may be expressed. We show that using a theory of scope availability based upon the function-argument structure of a sentence allows a deter-ministic, polynomial time test for the availability of a reading, while solving the same problem within theories b...