The study explores a long memory conditional volatility model on international grain markets, demonstrating importance of modeling both temporal effects of volatility and long memory process. This study adopts six different volatility models, nested in an ARMA(p,q)- FIGARCH(P,D,Q), to capture...

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The study explores a long memory conditional volatility model on international grain markets, demonstrating importance of modeling both temporal effects of volatility and long memory process. This study adopts six different volatility models, nested in an ARMA(p,q)- FIGARCH(P,D,Q), to capture...

This paper highlights the current status of organic farming in Poland, and identifies problems faced by organic food producers. The article presents the distribution of organic farms by acreage in Poland, pointing to their fragmentation and unused labour resources. Attention was also given to...