Developing robust and refined measures to quantify strategic impacts is a major challenge facing researchers who seek toimprove methods for information technology (IT) investment evaluation. This paper presents a means to test for parameterheterogeneity in a model which quantifies the strategic...

This paper discusses the problems in interpreting the correlation coefficient as a measure of geographical accessibility to public services by income groups. As an alternative a relative index is proposed which incorporates the unique limits to the correlation coefficient in any area and thus...