Three alternative input-output models differing in their treatment of competitive imports are formulated and relations between them examined. The Leontief matrices and their inverses corresponding to ...

This paper shows how a visual, interactive, dynamic multiple objective linear programming decision support system can effectively be used for analyzing input-output models. We have applied our ...

Authors of an article published in Health Affairs argue the pressure for diagnostic accuracy and overuse of tests and resources are the main barriers to containing cost in the acute-care setting, but ...