Here’s a downward trend that looks to be a good thing. I’ve graphed the percentage of high school students working 15 or more hours per week. (Data is from the 2013 Digest of Education Statistics.)
In the last eight years, the fraction of 16 and 17 year-old high school students working more than 15 hours a week has dropped in half. Note that the trend pre-dates the Great Recession.
I haven’t seen any academic work that might explain this rather large change. Any thoughts folks?