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Cykl koniunkturalny a wahania marż w polskim przemyśle spożywczym – wnioski z analizy spektralnej

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  • Kufel, Justyna

Abstract

In order to answer the question how market structures in the Polish food sector change along the business cycle, a relationship between real GDP in the period 2002-2013 and markups in the food sector was being tested. The methods used were as follows: correlations, cross-correlations and spectral analyses. Markups estimation taking account of marginal wage and overhead labor gave the most conclusive results. Cyclicality analysis allowed to state that the simultaneous variation between markups and business cycle is rather weak and negative, whereas markups peaks proceed peaks in business cycle by circa 2 years. / Synopsis. W celu odpowiedzi na pytanie, jak zmieniają się struktury rynku w polskim przemyśle spożywczym na tle wahań koniunktury, badano zależność między realnym PKB w latach 2002-2013 a marżami na poziomie zagregowanego przemysłu spożywczego. Oprócz analizy korelacyjnej i cross- korelacyjnej sięgnięto po narzędzia analizy spektralnej. Okazało się, że do najbardziej konkluzywnych wyników prowadzi estymacja marż z uwzględnieniem wynagrodzeń krańcowych i pracy nieprodukcyjnej. O ile analiza cykliczności pozwoliła stwierdzić, że równoczesna współzależność pomiędzy marżami a cyklem makroekonomicznym jest raczej słaba i ujemna, analiza wyprzedzeń i opóźnień wskazała, że szczyty marż poprzedzają szczyty koniunktury o ok. 2 lata.

Suggested Citation

  • Kufel, Justyna, 2016. "Cykl koniunkturalny a wahania marż w polskim przemyśle spożywczym – wnioski z analizy spektralnej," Problems of World Agriculture / Problemy Rolnictwa Światowego, Warsaw University of Life Sciences, vol. 16(31), pages 1-15, March.
  • Handle: RePEc:ags:polpwa:235454
    DOI: 10.22004/ag.econ.235454
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