Showing 1 - 10 of 557
A gestão dos resultados das atividades agropecuárias tem se tornado um constante desafio para os empresários rurais e a sua mensuração é imprescindível para o planejamento e análises de desempenho. No caso do mercado do boi gordo não tem sido diferente, principalmente, no que se refere...
Persistent link: https://www.econbiz.de/10009442749
O presente trabalho teve como objetivo realizar uma análise da volatilidade do retorno dos preços de boi gordo no Estado de São Paulo; examinando-se dois fatores determinantes, a persistência de choques e assimetrias na volatilidade, por meio da aplicação dos modelos ARCH/GARCH. Os...
Persistent link: https://www.econbiz.de/10009442804
O presente estudo tem como objetivo, usando simulações, analisar as operações dehedge com contratos de boi gordo da Bolsa de Mercadorias & Futuros (BM&F). Assimulações compreenderam o período de 2001 a 2006, sendo que em todos os anos oscontratos simulados são do mesmo vencimento,...
Persistent link: https://www.econbiz.de/10009443813
. Para tanto, utilizou-se a metodologia idealizada por Box-Jenkins (1976). Os resultados demonstraram que a série em questão …
Persistent link: https://www.econbiz.de/10009444577
This paper expands the contributions of Goodwin and Holt (AJAE, 1999) and Goodwin and Harper (J. of Ag. and Appl. Econ., 2000), GHH henceforth, who analyze retail-wholesale-farm price transmissions in the U.S. beef and pork industries using weekly data. First, in light of advancements in unit...
Persistent link: https://www.econbiz.de/10009443286
Many livestock sector models have limited coverage of relevant variables, and are somewhat ad hoc in their choice of what should be specified as behavioral equations. This study develops a generic conceptual approach to modeling the livestock sector that provides consistent rules of...
Persistent link: https://www.econbiz.de/10009443532
This article tests the efficiency of the hog options market and assesses the impact of the 1996 contract redesign on efficiency. We find that the hog options market is efficient, but some options yielded excess returns during the live hogs period but not during the lean hogs period. Our findings...
Persistent link: https://www.econbiz.de/10009443770
This study describes the development of bio economic models examining the economic and water quality impact of various proposed policy options in the Upper Waikato catchment. In the first phase nitrogen emissions are determined for representative farming systems using the Overseer nutrient...
Persistent link: https://www.econbiz.de/10009446323
The paper examines empirical returns from holding thirty- and ninety-day call and put positions,and the forecasting performance of implied volatility in the live and feeder cattle optionsmarkets. In both markets, implied volatility is an upwardly biased and inefficient predictor ofrealized...
Persistent link: https://www.econbiz.de/10009446388
-based forecasts, ARIMA, andunrestricted Vector Autoregressive (VAR) models. Quarterly data are available from 1975.Ithrough 2007.IV …
Persistent link: https://www.econbiz.de/10009446396