Please complete the attached declaration. Sending this attachment to the publisher is one of the preliminary conditions for SGGW to begin the review process on the article. Without sending the attached form, it will not be possible for researchers to submit their article for review. We would like to emphasize that the activities of the ACTA Scientiarum Polonorum Oeconomia have no commercial character, and that the publication fee is used to cover the labour and technical costs (including paper, printing) of the publishing house.