This Master’s Thesis addresses the cultural influences on the behavior of managers when working together in global business environments. It is assessed how people develop these mindsets, where improvements are visible and where sufficiencies are transparent. Similar mindsets can develop with the help of global experiences, but cultural differences still exist and influence the perceived importance of traits necessary for effective leadership, communication and teamwork. The own education is not necessarily sufficient to be effective in international business environments, which means that an individual has to be willing to understand differences deeply as well as change and develop himself accordingly. Managers are often unaware of the influences of social attitudes, although these are key elements required which help to cope properly with cultural differences. While differences may always exist, the proper handling of differences and the resulting judgements need to be carefully managed. The effective management of conflicts enables people to perform at their maximal potential. Change becomes vital, and includes questioning one’s own beliefs which were learned and applied to acquire new ones. Therefore, it is important to realize that change starts within ourselves.