Introducing a systematic method for designing literature map in interdisciplinary researches: A case study on entrepreneurs' migration Abstract: Scientific and research centers and institutes have paid attention to identify and use systematic principles and research tools in different aspects of implementing research projects. That is for the aim of determining problems, describing the research subjects and completing these projects promptly. This point is more important in interdisciplinary researches due to their complexity. This paper is an attempt to present a systematic tool for scholars for a better identification and justification of their research questions, as well as providing a method to design the literature map of study. The Half-Square model has been used to find out the research questions of entrepreneurs' immigration study at international level.