To conclude, there has been an exciting amount of research on voice within the
organizational literature. This work has helped us to understand better how
employees think about the issue of whether or not to speak up with ideas, suggestions,
or concerns; the types of employees who tend to voice the most; and
the contextual factors that encourage and enable employee voice. It also provides
some insight into the potential implications of voice. However, there
are many questions that beg for closer empirical investigation, and several
places where theory development can go deeper. It is my hope that this
paper will serve to guide and motivate future research efforts in a way that
will be fruitful for expanding our understanding of employee voice