inverse hyperbolic sine


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inverse hyperbolic sine

[¦in‚vərs ‚hī·pər‚bäl·ik ′sīn]
(mathematics)
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Only two coefficients change in a consistent and statistically significant manner across specifications and age groups: One is the "female, postsecondary education" coefficient, which is larger in 2001 than in 1989 for the 45-54 group in both specifications, and smaller in 2001 than in 1989 for the 75-84 group in the levels specification and for the 65-74 and 75-84 groups in the inverse hyperbolic sine specification; the other is the "years since divorce or death of spouse" coefficient, which is smaller in 2001 than in 1989 in the levels specification for all three younger age groups and in the inverse hyperbolic sine specification for the 25-34 group.
Although some of these decompositions indicate that demographic characteristics explain part of the change in average wealth, our main finding for these groups is that the results are not consistent across X and [beta] combinations or across the levels and inverse hyperbolic sine specifications.
For expositional ease, net worth is shown on a logarithmic scale on the vertical axis; these decompositions are estimated only for the inverse hyperbolic sine specification.