The theme of this bachelor thesis is analysis of the political business cycle at public procurements in twelve regional municipalities in the Czech Republic. Two hypotheses are tested, one of which relates to oportunistic behaviour of incumbents, and the other one to corruption. Four quantities, at which course from January 2005 to March 2011 is observed, are tested here. These quantities are number of public procurements, total amout of public procurements, average number of bids to one procurement and proportion of final and expected prices. Each of these quantities is observed separately for public procurements for goods, deliveries and services. Regression analysis is used for testing. The result of this thesis is that political busines...