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"ABSTRAKIn this paper we present a model in which individuals act in their own best interest, to explain many behaviors associated with cigarette addiction. There are two key features of the model. First, there is an explicit representation of the withdrawal effects experienced when smokers attempt to quit smoking. Second, there is explicit recognition that the negative effects of smoking generally appear late in an individual's life. Among the things we use the model to explain are: (1) how individuals can become trapped in their decision to smoke; (2) the conditions under which cold-turkey quitting and gradual quitting may occur; and (3) a reason for the existence of quit-smoking treatments."

"Examines the problems that exist throughout the current health care system and outlines basic changes that need to be made in order to provide safe, timely, and affordable health care for all Americans."

"Los incentivos para la innovación son especialmente relevantes en el sector farmacéutico, en el que no todas las necesidades sociales proporcionan las mismas oportunidades de beneficio y en el que la mayoría de los países de la OCDE intentan aplicar diferentes medidas que fomenten la investigación en estos campos que generan menos beneficios. La falta de incentivos para la innovación resulta especialmente dramática si tenemos en cuenta las enfermedades que afectan principalmente a países de renta baja, y también las enfermedades que afectan a grupos pequeños de pacientes."