ARE CONDITIONAL AND DISJUNCTION REALLY COMPARABLE?

Conditional Cash Transfer Programs: Are They Really Magic Bullets?

Conditional cash transfer programs pay recipients in exchange for an action that brings private behavior closer to the social optimum. We analyze one such program in Mexico, Progresa, that pays four million poor mothers to send their children to school and health visits. We show that these programs are effective, but that they can be made more efficient by following simple rules in selecting be...

Conjunction, Disjunction and Iterated Conditioning of Conditional Events

Starting from a recent paper by S. Kaufmann, we introduce a notion of conjunction of two conditional events and then we analyze it in the setting of coherence. We give a representation of the conjoined conditional and we show that this new object is a conditional random quantity, whose set of possible values normally contains the probabilities assessed for the two conditional events. We examine...

Roles Are Really Great!

We present a new role system for specifying changing referencing relationships of heap objects. The role of an object depends, in large part, on its aliasing relationships with other objects, with the role of each object changing as its aliasing relationships change. Roles therefore capture important object and data structure properties and provide useful information about how the actions of th...

Are Methods Really Useful?

Roles Are Really Great!