Whenever demand for a single item can be categorized into classes of di erent priority an inventory rationing policy should be considered In this paper we analyse a continuous review s Q model with lost sales and two demand classes A so called critical level policy is applied to ration the inventory among the two demand classes With this policy low priority demand is rejected in anticipation of...

This paper uses three case studies in order to examine the implementation of a policy of biological progress, initiated by the Rockefeller Foundation in the 1930s. In discussing the social and scientific goals of this research policy, the paper challenges views which have attributed to the Foundation's policy a direct irnpact upon the rise of molecular biology; i t also suggests that this polic...

Direct and Indirect Effects of Public Policies by Giacomo De Giorgi Chair: Richard Blundell This dissertation analyzes two im portant recent public policies and sheds light on the direct and indirect impacts of both; and more in general on the need of sound evaluations to carefully consider possible spillovers as a fundamental component of programs. In the first two essays I focus on the “New D...