Editors: Joost Platje and Monika Paradowska

ECONOMIC AND ENVIRONMENTAL STUDIES
Vol. 14, No.2 (30/2014)
Editors: Joost Platje
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ECONOMIC AND ENVIRONMENTAL STUDIES
Vol. 14, No. 2
30/2014
Editors: Joost Platje and Monika Paradowska
OPOLE UNIVERSITY
EDITORIAL BOARD
prof. Joost Platje, President, Editor in Chief (Opole University, Poland)
prof. Janusz S³odczyk, Editor (Opole University, Poland)
dr. Monika Paradowska, Secretary (Opole University, Poland)
prof. Joachim Ahrens (PFH, Goettingen, Germany)
prof. W³adys³aw Balicki (University of Economics, Poznañ, Poland)
dr hab. Eckhard Burkatzki (IHI / TU Dresden, Zittau, Germany)
prof. Remigijus Ciegis (Kaunas Faculty of Humanities, Vilnius University, Lithuania)
prof. Bogus³aw Fiedor (University of Economics, Wroc³aw, Poland)
prof. Lucyna Fr¹czkiewicz (University of Economics, Katowice, Poland)
prof. Wolfgang Gerstlberger (South Danish University, Denmark)
prof. Kazimierz Górka (University of Economics, Kraków, Poland)
prof. Dainora Grundey (Kaunas Faculty of Humanities, Vilnius University, Lithuania)
prof. Herman Hoen (Groningen University, the Netherlands)
prof. Jarl Kampen (University of Antwerp, Belgium; Wageningen University, the Netherlands)
prof. Fehmi Karasioglu (Selçuk University, Turkey)
prof. Mariusz Kistowski (Gdañsk University, Poland)
dr Karol Kociszewski (University of Economics, Wroc³aw, Poland)
dr Robert Kud³ak (Vienna University of Economics and Business, Vienna, Austria)
prof. Walter Leal Filho (Hamburg University of Applied Sciences, Germany)
prof. Jan £oboda (Wroc³aw University, Poland)
dr Sebastian P³ociennik (Wroc³aw University, Poland)
dr David Ramsey (Wroc³aw University of Technology, Poland)
prof. emiritus Klaus Schöler (University of Potsdam, Germany)
dr Neil Taylor (University of New England, Australia)
prof. Jaroslaw Vencalek (Ostrava University, Czech Republic)
THEMATIC EDITORS
prof. Wolfgang Gerstlberger (South Danish University, Denmark), Managerial Sciences
prof. Herman Hoen (Groningen University, the Netherlands), Economics
prof. Mariusz Kistowski (Gdañsk University, Poland), Geography
dr Monika Paradowska (Opole University, Poland), Economics
dr Julia Platje (External expert, Wroc³aw, Poland), Natural Sciences
dr David Ramsey (Wroc³aw University of Technology, Poland), Mathematics
TECHNICAL EDITING
Monika Paradowska, Sebastian Marcinkowski
LAYOUT, COVER DESIGN AND LOGO
Sebastian Marcinkowski
ISSN paper version 1642-2597
ISSN electronic version 2081-8319