Inclusion and exclusion criteria are used to set the boundaries for your review. Usually you will define these after setting the research question and before the search is conducted. Yet, it may be necessary to do some test searches first so you can determine the appropriate boundaries of your project. You can use many different aspects as criteria for the inclusion and exclusion of studies, such as:
You may also need to delineate your working definition of key concepts, e.g., entrepreneurship, participation, sustainability.
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