Nyman J A
Institute for Health Services Research, University of Minnesota, Minneapolis 55455-0392.
Med Care. 1993 Aug;31(8):680-93. doi: 10.1097/00005650-199308000-00002.
A three-part test for the presence of excess demand is replicated on data from three states in 1988: Wisconsin, Minnesota, and Oregon. No evidence of excess demand was found in Wisconsin and Oregon, and evidence in Minnesota was inconclusive. Limitations of the tests and refinements of the interpretation are discussed.
