Well you could start with the
unemployment rate and add discouraged workers. You could then refine your analysis by adopting the suggestion from
The Social Costs of Underemployment: Inadequate Employment as Disguised Unemployment by
Doley and
Prause and include involuntary part-time work and poverty-level pay.
Wait a second. Let me check. Ah, you're lucky. This book too is available from Amazon which means you can get it in your hands before you know who by clicking on the image below. By the way, what is our national bean-counter's estimate for
underemployment?

