10 The parameter of interest in the DD results show little evidence that increases in the effective minimum wage changed the intensive margin (number of minutes) of parents’ time with children in Panel A of Table 2 (the full sample), but there was evidence for increases in the extensive margin (likelihood of the activity): parents showed a small increase their likelihood of spending any time caring for or helping their children (column 4; a 1.3% increase) and a marginally statistically significant increase in spending any time in child education-related activities (column 5).
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