Abstract
Our study offers additional insight into the Office for Protection of Competition. It examines the Office for Protection of Competition in terms of an input-process-output model, defines the inputs needed for its activities and examines the outputs of its control activities. It also identifies external factors (in the environment) that affect the performance and behavior of the Office for Protection of Competition and have an impact on inspection activities. The theoretical background as well as assumptions are then subjected to empirical scrutiny. Theoretical conclusions and recommendations for more effective control of public contracts are drawn from the conclusions which are established.