Conclusion It should be mentioned that in the present research
Any study may have limitations, and in the present study there are two main limitations. First, the study relies on respondents that are primarily perceptual in nature. So the accuracy of responses could be improved if measures are obtained from different sources, also by extending the basic questionnaire with more questions relative to the effectiveness of operational resources and social issues. The second limitation is the sample sizes for the contingency analysis, that for BE and ME are near to the SEM reliability threshold.