Occasionally our family didn't spend the whole summer at our cottage and so I had to come up with ways of making money other than hunting golf balls. One way was to pick crabapples at the local Aubin's Nursery in Carman. We were paid by the bag. I was about 12 or 13 at the time. The person who oversaw the work said that we couldn't put a lot of leaves and other filler in the bag; we needed to do a clean pick. I understood this: their time value at cleaning up our dirty picks was higher than the time value of the young guys who were picking. I made one mistake, which I'm actually very proud of, and avoided one mistake, and I'm also very proud of that. The "mistake" I made was to do "too clean" a pick.
David Henderson considers the following as important: labor market
This could be interesting, too:
David Henderson writes Chronology of Past Jobs I Have Had, Part 1
Scott Sumner writes UBI vs. guaranteed jobs vs. wage subsidies
David Henderson writes Workers Affect Worker Safety Too
David Henderson writes Kennan on Card and Krueger and Obenauer and Nienburg