Suchergebnisse

Este estudo avalia e evolucao da produtividade da industria brasileira no periodo indicado. Apos o calculo da produtividade total dos fatores, a sua taxa de variacao foi decomposta nos seguintes elementos: progresso tecnico, economias de escala e utilizacao de capacidade. Os parametros da tecnologia de producao, necessarios para essa decomposicao, foram estimados econometricamente, usando-se uma funcao de producao, flexivel, do tipo translog, e as estimativas foram obtidas para o total da industria de transformacao e para cada um dos 21 generos industriais

The authors present estimates of the subsidies involved in the system of export financing adopted in Brazil until August 1984. They test the cost and the role of the credit supply as explanatory variables for export performance

Este trabalho procura aprofundar o conhecimento sobre os fatores determinantes do desempenho exportador da industria brasileira de produtos manufaturados, com base em uma analise de cross-section. Nesse sentido, constitui um enfoque analitico complementar a abordagem convencional de series de tempo. A principal conclusao extraida do estudo e que a estrutura de mercado constitui um importante fator determinante do desempenho exportador das diferentes industrias. Assim, do ponto de vista estritamente da promocao de exportacoes, politicas voltadas para o aumento da escala de operacoes das unidades produtivas seriam especialmente indicadas

Quantitative Analyse der industriellen Konzentration in Brasilien auf der Ebene des Gesamtsektors und in einzelnen Produktionsbereichen während der 70er Jahre vor dem Hintergrund der kontroversen Diskussion um die wirtschaftlichen und poliischen Folgen. Präzisierung des theoretischen Rahmens, Erläuterung der Untersuchungsmethode, Bestimmung der maßgeblichen Indikatoren und kommentierte Übersicht über die tabellarischen Ergebnisse der Erhebung

Renewable energy technologies are part of the solution to meet future increasing demand of electricity and decommissioning of power plants in the European Union. Public opinion surveys indicate general support of these technologies, but particular projects face local opposition, a phenomenon known in the literature as the NIMBY (Not In My BackYard) hypothesis. In this study, the public opinion on renewable energy technologies was analyzed by means of a survey implemented in Portugal. The survey addresses four technologies: hydro, wind, biomass and solar power. The study has three main purposes: firstly, to recognize if the people acknowledges the existence of these technologies, secondly, to study the validity of the NIMBY hypothesis in Portugal while realizing in which technology it is more pronounced, and thirdly to perceive the levels of acceptance of each technology, under Sustainable Development aspects (Economy, Ecology and Society). The results suggest that acknowledgement of technology decreases with age, increases with educational degree and is greater in males. There is a generally positive attitude towards new projects of all technologies, and this tendency is more pronounced for solar power. Solar power plants are regarded by the Portuguese public as the most desirable technology in terms of economic and environmental aspects, while hydro power is perceived as the RES technology that can contribute the most to local residents' welfare. ; This work was financed by: the QREN – Operational Programme for Competitiveness Factors, the European Union – European Regional Development Fund and National Funds- Portuguese Foundation for Science and Technology, under Project FCOMP-01-0124-FEDER-011377 and Project ...

During the greenhouse conditions prevailing in the early–middle Eocene, larger benthic foraminifers (LBF) spread out on carbonate platforms worldwide while rhodolith beds were scarcely represented. This reduction in rhodolith beds coincided with a relative decrease in coralline algal diversity and with a drastic decline of coral reef abundance. Middle Eocene rhodoliths from two tropical (San Jacinto Fold Belt in northern Colombia and Bahoruco Peninsula in the Dominican Republic) and two mid-latitude (Salinas Menores Ravine and Sierra del Zacatín in Southern Spain) localities were studied. Rhodolith rudstones in the tropical areas accumulated on relatively deep (several tens of meters) platform environments and were also redeposited in deeper settings downslope. In Salinas Menores, rhodoliths are dispersed in planktic foraminifer-rich marls. Miliolids are common in the infilling of constructional voids in these rhodoliths, indicating that they originally grew in shallow-water inner-shelf settings and afterwards they were transported to deeper environments. In Sierra del Zacatín, rhodoliths are scarce and coralline algae mainly occur as crusts attached to and intergrowing with corals. Here, LBF dominated shallow-water carbonate platforms. In terms of taxonomic composition, coralline algae of the order Hapalidiales are the most abundant in the study areas, followed by Sporolithales. The order Corallinales is poorly represented except in Salinas Menores, where it is relatively abundant and diverse. The impact of high temperatures due to high levels of atmospheric CO2 during the Eocene and widespread oligotrophic conditions, which favored formation of LBF-rich lithofacies, might account for the low abundance of rhodolith beds at mid and high latitudes. In contrast, the more productive equatorial regions would have favored the formation of rhodolith beds. ; This research was funded by Research Group RNM-190 of the Junta de Andalucía (JA and JCB), MINECO/FEDER-UE project CGL2015-65404-R and by the Consolidated Research Group IT930-16 of the Basque Government (VP and XOE).