> As a result, most of the work force is in low-productivity jobs

Do we have a good understanding of how this shift of employment from high-productivity to low-productivity industries plays out? Is it even still happening? A BLS study comparing data from 2000 and 2010 found no association between an industry's change in productivity and change in employment. [1]

[1] https://www.bls.gov/spotlight/2013/productivity/ (See slide 7)