Help me to understand how you're reading this graph. I understand it to mean that in 1949 minimum wage was $4.22 an hour in 2018 dollars. Does that graph show w

Help me to understand how you're reading this graph. I understand it to mean that in 1949 minimum wage was $4.22 an hour in 2018 dollars. Does that graph show worker productivity as well? Similarly I do not understand your assertion that the author is "cherrypicking troughs and peaks". from tfa: > Until 1968, the minimum wage not only kept pace with inflation, it rose in step with productivity growth. The logic is straightforward; we expect that wages in general will rise in step with productivity growth. For workers at the bottom to share in the overall improvement in society’s living standards, the minimum wage should also rise with productivity. Is their assertion regarding 1968 and minimum wage factually incorrect?