Comportamento do mercado da castanha-do-Brasil com casca produzida no Brasil de 2000 a 2010

O objetivo do trabalho foi analisar o comportamento do mercado da castanha-do-Brasil com casca produzida pelo Brasil no período de 2000 a 2010. Para isso, identificaram-se quebras estruturais nas séries de dados utilizadas; investigou-se a existência de correlações entre as variáveis preço, quantidade e valor; e descreveram-se os deslocamentos das curvas de oferta e demanda da castanha-do-Brasil com casca produzida pelo país nesse período. O modelo de tendência foi utilizado para identificar a direção dos deslocamentos das curvas, por meio do cálculo das taxas de crescimento do preço pago ao coletor e da quantidade produzida. Para o período integral (2000-2010) houve deslocamento positivo da curva de demanda. Porém ao se analisar separadamente os subperíodos identificados pelo teste de Chow (2000-2005 e 2006-2010), verificou-se um deslocamento negativo da oferta no primeiro subperíodo e um deslocamento positivo da oferta no segundo subperíodo. Os resultados mostraram que o mercado de castanha-do-Brasil está crescendo e que as políticas de incentivo do governo à atividade foram efetivas.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 (2000-2010), 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

CONCENTRATION OF FRAMES IMPORTED BY THE UNITED STATES, PERIOD OF 2005 TO 2009

This paper aims to analyze the U.S imports of frames between 2005 and\ud 2009. Concentration indexes were used to characterize the behavior of the studied\ud market. The indices chosen for this work were: concentration ratio of the four and the\ud eight countries with the highest import, rate of market concentration of the same four and\ud eight major countries, the Herfindahl-Hirschman and Gini Index. All the results indicate\ud to a dominated market, highly concentrated, and with 94% of the market centered on\ud four main exporting countries and 97% concentrated in the top eight. Also, it is possible\ud to conclude that China is the main exporter of frames for the U.S. market, holding\ud approximately 70% of total frames imports

Market Behavior for in Shell Brazil Nuts Produced in Brazil from 2000 to 2010

ABSTRACT 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 (2000-2010), 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