Corvinus University of Budapest developed Corvinus Research Archive so that users - the scholarly community and the public - may access research output of the University. Copyright and other rights for the papers on this site are retained by the individual authors and/or other copyright owners. Users may download and/or print one copy of any article(s) in Corvinus Research Archive to facilitate their private study or for non-commercial research. You may not engage in further distribution of the material or use it for any profit-making activities or any commercial gain unless the copyright holder explicitly allows other uses of certain items. You may freely distribute the URL (http://unipub.lib.uni-corvinus.hu) of the Corvinus Research Archive website.