‘Limitations or shortcomings of the study’ is the last stage of a thesis. After the study is completed, as a researcher, you may have identified shortcomings.
A problem statement is a brief overview of the issues or problems existing in the concerned area selected for the research. It is an explanation of the issues prevalent in a particular sector which drives the researcher to take interest in that sector for in-depth study and analysis, so as to understand and solve them (Saunders et al. 2009).