Konkurenční efekt a postkontraktační chování zadavatelů

This bachelor’s thesis examines public procurement of construction works in the territory of the city of Prague between 2017 and 2023. The aim of the thesis is to determine whether a competitive effect is present in the analysed sample and, if so, whether it is subsequently offset by additional costs. Regression analysis is used for evaluation. The observed variables include the estimated price, the contract price, the final price actually paid, and the number of submitted bids. The effect of the number of bids on reducing the contract price relative to the estimated price is statistically significant, confirming the presence of a competitive effect. In contrast, the model describing the relationship between the competitive effect and ex-post changes in the contract price was not found to be statistically significant. The thesis also includes a selection of empirical studies from both international and domestic contexts that address similar issues. Attention is also given to the legal framework governing post-contractual behavior of contracting authorities.