This paper aims to evaluate the variation of market share explained by structural and competitive forces using the Constant Market Share (CMS) model. Assuming that a country should maintain its market share to keep competitive, the equation used in the model analyzes the export basket composition, exports destination, growth or shrinkage of the world market and the competitiveness effect. The overall loss of the Brazilian market share in a time series from 1998-2012 is given due to the barriers of potential European markets and reduction of the market growth of the product with shell. In a different way, the increase in exports of shelled nuts to markets with higher growth rates contributed to a favorable outlook for Bolivian and Peruvian markets, which had a market share gain on the period.
This paper aimed to analyze the market behavior of in shell Brazil nuts produced by Brazil during the period of 2000 to 2010. In order to do it, structural brakes in the data were identified, the existence of correlations between the variables price, quantity and value was investigated; and the shift of the supply and demand curves was described for the nuts production. The trend model was used to identify the direction of the shift, by calculating the growth rates of national prices and of produced quantities. When analyzing the whole period (2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010), there was a positive shift of the demand curve, but when separately analyzing the two sub periods defined by the Chow test (2000-2005 and 2006-2010), a negative shift of the supply curve was identified on the first sub period, while the second subperiod revealed a positive shift of the supply curve. The results showed that the market of Brazil nuts is ascending and that the government's incentive policies to the activity were effective.Keywords: forest economics, non-timber forest products, Brazil nuts. Palavras-chave: economia florestal, produtos florestais não madeireiros, castanha-do-Brasil.
O objetivo do artigo foi avaliar a competitividade dos principais produtos florestais não madeireiros provenientes da carnaúba nordestina, bem como estimar o preço dos produtos cera, pó e fibra. Foram obtidas a taxa de crescimento para a produção e a estimativa do preço de cada variável analisada (cera, pó e fibra) com base no valor bruto da produção (VBP) e quantidade produzida, no período de 1994 e 2014. Neste sentido, verificou-se que para a variável pó, houve um deslocamento da demanda para a direta, o que representa uma elevação na procura deste produto no mercado nacional. Para os demais produtos, cera e fibra de carnaúba, houve uma tendência de deslocamento da oferta para a esquerda, representando uma perda de produção no cenário regional.Palavra-chave: cera, pó, fibra. FOREST PRODUCTS NOT TIMBER THE BRAZILIAN NORTHEAST - CARNAUBA ABSTRACT:The aim of the paper was evaluate the competitiveness of the main non timber forest products originated from northeastern carnauba, and estimates the price of wax, powder and fiber products. Based on the gross value and amount of production, between 1994 and 2014, it was possible to find the production growth rate and the price of each product. And yet, estimate the price of each product. Therefore, it was possible to observe a shift to the right on the demand of powder product, and a shift to the left on the offer of wax and carnauba fiber products.Keywords: wax, powder, fiber. DOI:
O presente estudo objetivou verificar a dinâmica da concentração e da desigualdade das exportações brasileiras de celulose química. Foram utilizados dados secundários de valor e volume das exportações brasileiras, no período compreendido entre 1990 e 2010, do qual foram calculados os índices: razão de concentração (CR4 e CR8), Herfindahl-Hirschman (HHI) e Gini. Para o índice de desigualdade de Gini e os índices de concentração CR4 e CR8, os anos 2001, 2002 e 2003, respectivamente, marcaram o fim da queda dos níveis de desigualdade e de concentração. O índice HHI teve comportamento similar, porém, em 2006 registrou-se o valor mais baixo. A partir deste período, os índices apresentaram tendência de crescimento, mas não atingiram os patamares do início do período. De forma geral, os resultados demonstraram a redução das concentrações das exportações, assim como o acréscimo do número de parceiros comerciais. Houve aumento, tanto do valor exportado, como do volume e do preço unitário, no período. Os índices calculados são variáveis associadas à capacidade de competição das indústrias e com base nos resultados indicam que o setor de celulose nacional se tornou mais competitivo ao longo do período.
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