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Nerlove-Arrow's model is a starting point for some practical and theoretical studies in marketing. Here we want to give our point of view on this growing and exciting field of research. First of all we present the Nerlove-Arrow's linear model of goodwill evolution under advertising investment. Then we provide a sketch of a variety of problems which are(More)
The use of integrated aqueduct systems is quite common in the provision of drinking water. In fact, it enables the system to handle crisis in the provision of the service caused, for example, by pollution emergencies or peaks in day demand curves. The Italian Local Water authorities (ATOs) assign a concession contract to a private provider that has the(More)
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