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In a performance test, the standards for
assessing its test results are not sufficiently determined due to the lack of a
well-structured test developing methods which are found in a functionality test.
By extending the established workflow structure, this approach will concentrate
on tradeoffs within T-workflow and further develop tests based on T-workflow. The
monitoring and tuning point have also been investigated to understand the validity
and performance of software. Finally through a case study, it has been shown that
better assessment of software performance can be obtained with the suggested tests
developed based on T-workflow and by locating its monitoring point and tuning point.
This paper reports upon the
profitability of firms that locate their headquarters in same-industry
or clusters and those that opt to maintain headquarters in other locations.
While the preponderance of the theoretical and descriptive literature
emphasizes the potential benefits associated with clustering, some papers
suggest that clustering should not be
beneficial, at least for particular types of firms in particular circumstances.
This empirical study, which examines a sample of more than 4000
Compustat firms from 86 different industries, compares the profitability of
firms in industry clusters and firms in other locations. The sample is
partitioned into small and large firms to account for expected differences in
profitability, in general, and the possible differential impact of geographic
clustering. The results
show that for smaller firms, the profitability of cluster members tends to be
considerably lower than for firms that opt not to join clusters. For the
subsample of larger firms, the results are mixed depending upon the measure of
results imply that smaller firms should carefully evaluate the decision to
locate in industry clusters.