Search results

This paper studies screening problems with quasilinear preferences, where agents' private information is two-dimensional and the allocation instrument is one-dimensional. We define a preorder to compare types based on their marginal valuation to the instrument, which facilitates the reduction of incentive compatibility constraints that must be checked. With this approach, the discretized problem becomes computationally tractable. As an application, we numerically solve a problem introduced by Lewis & Sappington (1988)

RESUMO A bacia hidrográfica é considerada um recorte geográfico importante para o planejamento ambiental. A sua precisa delimitação permite realizar um planejamento adequado para ocupação e uso correto pela sociedade. Nesse sentido, o presente trabalho tem como objetivo realizar uma análise comparativa visual das delimitações automáticas realizadas com os programas TauDEM, SAGA e TERRAHIDRO, bem como da delimitação por análise visual, com as delimitações oficiais do SEMARH - RN e da ANA (ottobacia nível 05), visando redefinir e atualizar os limites da bacia hidrográfica do Rio Doce/RN. Para fazer a delimitação utilizaram-se os dados de elevação do terreno do banco de dados geomorfométricos do Brasil, TOPODATA, hidrografia das cartas topográficas da SUDENE, na escala 1:100.000 e imagens do Google Earth. Os dados foram trabalhados nos SIGs QGIS 2.14 Essen e Terraview hidro 0.4.1. Os resultados mostraram que a delimitação por análise visual e automática utilizando a plataforma TERRAHIDRO possibilitou identificar os limites da bacia em suas áreas aplainadas. Já o TauDEM e o SAGA identificaram um paleocanal do rio Doce, direcionando assim o ponto exutório da bacia. Entende-se que o TERRAHIDRO apresentou o melhor resultado para a delimitação da bacia, propondo-se seu uso em bacias hidrográficas com escalas média e grande.

The aim of the study is to detect experiences related to memory, identity and heritage in comments posted on the TripAdvisor website about Casa da Tapioca. It is a predominantly qualitative research, using the comments from 2013 to 2019, with data analysis performed using the Iramuteq software and the content analysis technique. Of the 117 comments obtained, 51% were potiguares. In the word cloud and similarity analysis, <tapioca> stands out, indicating that it permeates people's imagination and evokes what is most rooted in local cuisine. Memories surfaced in the categories: old, traditional and country; identity in: rustic, simplicity, indigenous, original/handmade, Brazilian and Northeastern; heritage in: protection and maintenance. It is concluded that the cultural components present in Casa da Tapioca produce an atmosphere perceived by residents and tourists. There is a real appreciation of culture, while adding importance to the development of tourism with a strong gastronomic identity.

The objective of this research is to analyze the initiatives of Smart Tourism Destination [STD] present in Natal city, RN, Brazil. The study is based on the model of State Society for the Management of Innovation and Tourism Technologies (SEGITTUR), Spain, in which there are four dimensions to be developed to consolidate destinations as STD: Innovation, Technology, Universal Accessibility and Sustainability. Data collection used a semi-structured interview script with ten open questions applied to managers and researchers from the public and private sectors of the city. Documentary analysis of the Master Plan of Natal was also carried out, showing elements of Accessibility and to a lesser extent notion of Sustainability and Innovation. The interviews showed that Natal has incipient initiatives of Technology, Innovation and Accessibility, but it needs more projects of Sustainability to consolidate as STD. It deserves the attention of stakeholders in improving initiatives and acting together so that the essential dimensions are evolved in the city.