The diploma thesis "Anti-corruption activism of the commercial sector from the point of view of political opportunity structure theory" Abstract The diploma thesis "Anti-corruption activism of the commercial sector from the point of view of political opportunity structure theory" was devoted to the structure of political opportunities in 1998 to 2012 in relation to manifestations of corruption in the Czech Republic and the role of the commercial sector in terms of anti-corruption involvement. This thesis aimed to find out what is the structure of the opportunities, that participants of the commercial sector can be use in order to influence anti-corruption public politics. Two periods were found from the period of time which the thesis focuses on, during which more fundamental manifestations of the commercial sector occurred. The first period was linked to accession of the Czech Republic to the EU, when presentation of the commercial sector most frequently took place via special-interest associations and tools of Commercial ethics and the concept of CSR supported by activities of the European Union. Years of accession talks showed themselves to be an opportunity, above all for international companies operating in the Czech Republic with a dominance of use of political and institutional opportunities. The...