This is a great question that we field often and my response is, unfortunately, not simply an itemized list of variables to include in your analysis.
All companies differ in their compensation practice. Consequently, analyzing a laundry list of explanatory compensation factors and seeing which sticks, and iteratively refining it down to an acceptable model is not the most appropriate approach. In practice, this is sometimes referred to as a "datamining" approach.
The most valid list of explanatory compensation factors is a reflection of your company's compensation policy and practice. To obtain this list, what we've done is to interview HR compensation dept and ask for the factors that go into determining pay and promotions.
Through this exercise, you get a list of compensation factors that reflects what "should" be done in determining pay. An apriori approach to identifying legitimate compensation factors prior running an analysis is more diagnostic and imminently more scientifically defensible and robust. I strongly recommend this approach.
Datamining and sifting through a myriad of possible explanatory factors in building a compensation model may result in misleading findings. Unfortunately, I see this all too often.
I wish there was an easy answer, but there's no shortcuts at this critical stage of your comp analysis.
Again, great question!
best,
dk
Dan Kuang, Ph.D.
Principal Consultant
Biddle Consulting Group, Inc.
193 Blue Ravine Road, Suite 270
Folsom, California 95630
916.294.4250x145 (w) 916.294.4255 (f)
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