The article presents the problem of competitiveness of Polish apples. In the paper the quantity of production and international trade of was analyzed. Major importers and exporters of apples were identified. In order to assess the international competitiveness ex post measure has been used. The...

In this paper, a supply chain model with power form stock-dependent demand rate is developed, incorporating the effect of learning and inflationary environment. In order to bring their research closer to reality, all the cost parameters involved in the model are considered fuzzy in nature. The...