  I propose the R-Index, defined as the difference between the sum of review
responsibilities for a researcher's publications and the number of reviews they
have completed, as a novel metric to effectively characterize a researcher's
contribution to the peer review process. This index aims to balance the demands
placed on the peer review system by a researcher's publication output with
their engagement in reviewing others' work, providing a measure of whether they
are giving back to the academic community commensurately with their own
publication demands. The R-Index offers a straightforward and fair approach to
encourage equitable participation in peer review, thereby supporting the
sustainability and efficiency of the scholarly publishing process.
