Les services de tourisme de nature fournis par le patrimoine naturel sont des produits composites et le plus souvent non marchands. Financer la préservation de ce patrimoine par ses usagers est donc tributaire d’une connaissance fine des préférences des touristes et de la valeur qu’ils accordent à la nature. Cette thèse vise de contribuer au débat sur le financement de la préservation des espaces naturels et leurs aménités par les touristes en considérant comme point d’entrée l’hétérogénéité des comportements individuels selon une double perspective. D’abord, nous examinons les déterminants de cette hétérogénéité en termes de la demande de séjours de tourisme en pleine nature, ensuite nous nous penchons sur l’analyse de l’hétérogénéité en termes du mécanisme de contribution choisi par les agents, à savoir, un mécanisme de contribution volontaire ou un mécanisme de contribution contre une service rendu. Les motivations non-économiques de contribution et plus globalement les facteurs cognitifs, en lien avec d’autres caractéristiques individuelles des touristes structurent notre réflexion tout au long de cette thèse. Enfin, les résultats obtenus via cette analyse sont mis en contraste avec ceux issus de la mis en exergue d’un instrument de participation des touristes déjà mis en oeuvre: la taxation. Nous proposons une application aux séjours d’été effectués dans la région de l’estuaire de la Gironde en France. / Tourism services provided by natural environment are composites goods and often non-market. Funding the preservation of this heritage by its own users depends on a profound knowledge of the preferences of tourists and the value they place on nature. This thesis aims to contribute to the debate on the funding of natural areas and amenities preservation programs by tourists. To do so we consider as an entry point the individual’s behavior heterogeneity from two perspectives. First, we examine the determinants of heterogeneity in terms of the demand of nature tourism stay, and then we focus on the analysis of heterogeneity in terms of the contribution mechanism chosen by the agents, e.g., voluntary contribution mechanism or contribution mechanism against a service. The non-economic motivations for contributing and overall cognitive factors, considered in conjunction with other tourists’ individual characteristics, is the main thread structuring our reflection throughout this thesis. Finally, the results obtained through this analysis are contrasted with those from an instrument of tourists contributions already implemented: taxation. We propose an application for summer stays in the region of the Gironde estuary in France.

Made available in DSpace on 2016-04-28T20:19:15Z (GMT). No. of bitstreams: 1 2006-Marcelo Poca de Souza.pdf: 1291201 bytes, checksum: f22000fa61d7cfe4e1f2ae05c493a553 (MD5) Previous issue date: 2006-06-29 / This research is based on a case study, rise the application of partnership management methodologies between non-governmental organizations (NGO) and companies. From this point, a bibliographic revision tried to present the partnerships evolution on companies side and intersectorials, which is the object of this research. It tried too evaluate the demand factors which enforce NGO as companies partner emphasizing a potential synergy framework verified by some authors. The research used the James E. Austin (2001) collaboration continuunm dimensions framework, who is a reference due his research and the theories about partnerships between NGO and companies. From the case study, unique type, which represents the typical NGO universe, it was observed the circumstances and conditions a NGO would have applied methods of relationship management by his own, and identify what are the strength points and challenges the NGO faced to maintain this relationship management process. Then, it was observed that the dimensions presented by Austin are consistent on the management structure in a NGO, but it suffers by the informal management style of its more valuable and intangible resource: the partners. / Esta pesquisa, baseada num estudo de caso, levanta a aplica??o de metodologias de gest?o de parcerias entre organiza??es n?o governamentais (ONG) e empresas. A partir de uma fundamenta??o te?rica que buscou apresentar a evolu??o das parcerias empresariais e intersetoriais, que ? o principal objeto da pesquisa. Buscou-se tamb?m avaliar os fatores de demanda que levariam as ONG a formarem parcerias com as empresas destacando um quadro potencial de sinergias verificado por diversos autores. A pesquisa utilizou as dimens?es do continuum da colabora??o preconizado por James E. Austin (2001), autor que ? refer?ncia em pesquisa e teorias sobre administra??o de parcerias entre ONG e empresas. A partir do estudo de caso tipo ?nico, t?pico do universo de ONG, as circunst?ncias e condi??es que uma ONG teria aplicado seus m?todos pr?prios de gest?o de parcerias foram observadas e, a partir da?, identificou-se os pontos fortes e os desafios da ONG em manter sua administra??o de relacionamento. Percebe-se que as dimens?es apresentadas por Austin s?o consistentes na estrutura de gest?o de uma ONG, mas que esta ainda sofre pela gest?o informal de seu recurso intang?vel mais valioso: a parceria.