When you do theoretical mathematical demography it's good to have a Plan B so I ride a bike.
By the way have you seen now bananas the newest NSFG data are? Impossible changes within cohorts from the last wave (way more than between waves before) - doubling rates of rareish time-invariant traits, reversals of monotonic increasing experiences, etc.
By the way have you seen now bananas the newest NSFG data are? Impossible changes within cohorts from the last wave (way more than between waves before) - doubling rates of rareish time-invariant traits, reversals of monotonic increasing experiences, etc.