@article{Płonka:201794,
      recid = {201794},
      author = {Płonka, Aleksandra and Musiał, Wiesław},
      title = {Wahania cen Głównych Produktów Rolnych na Rynkach  Krajowych},
      journal = {Roczniki (Annals)},
      address = {2014},
      number = {1230-2016-99620},
      year = {2014},
      abstract = {This paper examines the problem of fluctuations in the  prices of main agricultural products such as  cereals,
potatoes, sugar beet and oilseed in the period  1989-2012. The paper presents the changes in prices of  major
agricultural products in constant price term from  2012. Results show, that after 1989 was a sharp decline
in  the prices of almost all basic agricultural products. In  the least he concerned the rape and the slaughter
livestock  veal, in the reference to which a rise in prices was  recorded in 1990. In the period of examinations
were  recorded a few price bottoms and hills, including the  biggest hole taking place in 1991, in which the
government  took multifaceted action stabilizing prices of outputs  among others by the central import and
enabling the  individual transport of ready food. The essential slump of  prices of outputs took place also in
years of the strong  economic recession in 2009 and 2010, which the return to  upturns was taken note after.},
      url = {http://ageconsearch.umn.edu/record/201794},
      doi = {https://doi.org/10.22004/ag.econ.201794},
}