We conduct a valuation of species protection in central Chile's Campana National Park (CNP) using the choice experiment (CE) method. The CNP has been recognized as having global relevance for the conservation of biological diversity. Specifically, the aim is to estimate the willingness to pay (WTP) of park visitors for protection of different protected species in the area: popular species of fl...

Current approach to the management of World Heritage sites and associated tourism is not always effective. Indeed, operators Chteau de Versailles, Alhambra, Vatican Palace trade-off visitors’ revenues against damage these sites. We study effective dynamic behavior a firm managing heritage site. In an optimal control model, operator sets pricing conservation policies. benefit from spending on bu...

this article analyses the push and pull factors that bring visitors to the iranian national parks. the study used a structured questionnaire to collect data on these factors and the socio-demographic profile of the visitors. survey conducted in boujagh national park, an area of 3177 hectares located in the north of the iran, produced 400 questionnaires. the factor analysis identified four push ...

BACKGROUND This year, Brazil will host about 600,000 foreign visitors during the 2014 FIFA World Cup. The concern of possible dengue transmission during this event has been raised given the high transmission rates reported in the past by this country. METHODOLOGY/PRINCIPAL FINDINGS We used dengue incidence rates reported by each host city during previous years (2001-2013) to estimate the risk...

in a previous work, we introduced particular fuzzy numbers anddiscussed some of their properties. in this paper we use the comparison methodintroduced by dorohonceanu and marin[5] to compare between these fuzzynumbers.

isfahan province is located in central of iran. it has different climate conditions including arid in the east, central and north of the province, mediterranean climate to humid in the west and southern part. generally, this province has a hot and dry climate in summer and cold in winter.this province has natural and cultural attractions, it has a high potential in attracting visitors. but this...