Despite the current uncertain economic times, the globalization has continued to perform. One can see the interconnection between the economies around the world in the levels of developing the cross-border trade. The globalization has become an irremovable process, which was developed with a floating speed, but sometimes quite high, including within its sphere in a direct or indirect way the set of the world states. This paper carries out an analysis and compares the effects of the economic openings in Romania and Bulgaria. The results have indicated the idea according to which, the level of economic opening has had a higher impact over the economy in Romania, as comparing to Bulgaria. The defining feature of this paper is related to the use of economic globalization index. The objective evaluation of both causes and consequences on globalization has represented a priority for the contemporaneous societies. The economic, social and political analysis has needed information, and the globalization index has represented an important tool in order to provide the realistic data. The globalization indexes have been used in various ways. Besides the academic analysis, these have been used in the analysis of the economic activity, in the mass-media, as well as in the political groups. This paper emphasizes the assessment of the level of globalization by assessing the importance given to the globalization index. The paper underline that a proper understanding of the globalization process requires interdisciplinary action. Despite some various methodologies, of the variables set or weights in order to study and measure the globalization in a significant way, new cooperation frames have proven to be necessary.