Any proof of a hypothesis or research thesis requires the researcher to use methods that are optimally selected according to the organizational capabilities of the researcher, the adopted research budget, and, above all, the adopted research assumptions. An important factor is to optimize the possibility of obtaining a research result that most closely reflects the surrounding cognitive reality. In economics, which is included in the field of social sciences, an important plane of analysis is the so-called data, which the researcher must process and, using statistical methods, carry out the process of falsification or confirmation of the research hypothesis. An activity that broadens the cognitive value is qualitative methods and, more specifically, the information obtained using them. In this way, the researcher creates a comprehensive research process, in which quantitative methods are compiled with qualitative methods. Such a study is referred to as a method of triangulation of methods, which allows the researcher to confront the representative result of quantitative and qualitative research.