SELECTED FACTORS AND PURCHASE PRICE LEVELS OF SOUR CHERRIES FOR PROCESSING IN POLAND

Abstract

This study aims to identify the factors forming the purchase price levels of sour cherries for processing in Poland and to determine the way such factors affect these price levels. The scope of the study covers the 2004-2018 period. The subject of the study were the annual average purchase prices of sour cherries for freezing and sour cherries for pressing. Those prices were published by the Institute of Agricultural and Food Economics in the magazine “Rynek Owoców i Warzyw” [“Fruit and Vegetable Market”]. A multiple regression method was used for analysing the relationship between the purchase prices of sour cherries and their determinants. The estimation of the structural parameters of econometric models was done using the method of least squares. The estimated econometric models explain approximately 80% volatility in the purchase prices of sour cherries for processing. The sour cherry harvest both in Poland and Germany as well as the strawberry harvest in Poland proved to be significant for the purchase prices of sour cherries. Strawberries may be a substitute for sour cherries in food processing. The importance of this factor for the formation of the purchase prices of sour cherries is a significant result of this study.

Keywords

• sour cherry purchase prices
• fruits for processing
• sour cherry production
• price determinants
• regression model