The document discusses research on the relationship between family history and life insurance. It summarizes existing literature showing modest but robust connections between the lifespans of family members like spouses, parents and children, and grandparents and grandchildren. The document then presents analyses using a genealogical dataset, finding correlations between related individuals' lifespans. It explores how these family dependencies could impact life insurance premiums and quantities like annuities, widow's pensions, and life expectancies.
High germline mutations may affect to our lifespans! [Today's paper]HeonjongHan
Today's paper is a summary of each scientific article that I've read.
Today I covered "Germline mutation rates in young adults predict longevity and reproductive lifespan." published in 2020, Scientific reports.
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High germline mutations may affect to our lifespans! [Today's paper]HeonjongHan
Today's paper is a summary of each scientific article that I've read.
Today I covered "Germline mutation rates in young adults predict longevity and reproductive lifespan." published in 2020, Scientific reports.
doi: 10.1038/s41598-020-66867-0
Talk at the modcov19 CNRS workshop, en France, to present our article COVID-19 pandemic control: balancing detection policy and lockdown intervention under ICU sustainability
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1. Family History and Life Insurance
Arthur Charpentier1, Ewen Gallic2 & Olivier Cabrignac3
1 UQAM, 2 AMSE & 3 SCOR
UNSW Actuarial Seminar, September 2020
https://arxiv.org/abs/2006.08446
@freakonometrics freakonometrics freakonometrics.hypotheses.org 1 / 25
2. Family History & Risk
2013 Angelina Jolie
risk of developing cancers
family historyAngelina Jolie lost
8 family members to cancer
Interesting debates related to
predictive probabilities, risk,
insurance and prevention
@freakonometrics freakonometrics freakonometrics.hypotheses.org 2 / 25
4. Agenda
Motivations
Existing Literature
Genealogical Data
‘Family History’ & Life Insurance
Husband-Wife
Children-Parents
Grand Children-Grandparents
Using genealogical trees to understand dependencies in life spans
and quantify the impact on (life related) insurance premiums
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5. Literature on Family and Insurance
Parkes et al. (1969) 4,486 widowers of 55 yearsold (and older)
to confirm the broken heart syndrom
Frees et al. (1996): 14,947 insurance contracts, Canadian
insurance company, in force in 1988-1993
→ censoring problem
used also in Carriere (1997), Youn and Shemyakin (1999),
Shemyakin and Youn (2001)
in Luciano et al. (2008), subset of 11,454 contracts, born
before 1920 (male) and 1923 (female)
Denuit et al. (2001): selected two cemeteries in Brussels
(Koekelberg and Ixelles / Elsene) and collected the ages at
death of 533 couples buried there
@freakonometrics freakonometrics freakonometrics.hypotheses.org 5 / 25
6. Genealogical Data
Charpentier and Gallic (2020a) comparing our collaborative based
dataset (238,009 users, 1,547,086 individual born in [1800, 1805)),
with official historical data
Charpentier and Gallic (2020b) on generational migration
@freakonometrics freakonometrics freakonometrics.hypotheses.org 6 / 25
7. Genealogical Data & “Generations”
Initial starting generation (born in [1800, 1805))
then children (born ∼ [1815, 1870)), grand children (born
∼ [1830, 1915)), grand grand children (born ∼ [1850, 1940))
0
5
10
1800 1820 1840 1860 1880 1900 1920 1940
Year of birth
Numberofindividuals(log)
1800-1804 Generation Children Grandchildren Great-grandchildren
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8. Demographic & Insurance Notations
tpx = P[T(x) > t] = P[T−x > t|T > x] =
P[T > t + x]
P[T > x]
=
S(x + t)
S(x)
.
curtate life expectancy for Tx is defined as
ex = E Tx = E T − x |T > x =
∞
t=0
ttpx · qx+t =
∞
t=1
tpx ,
actuarial present value of the annuity of an individual age (x) is
ax =
∞
k=1
νk
kpx or ax:n =
n
k=1
νk
kpx ,
and whole life insurance (see Bowers et al. (1997))
Ax =
∞
k=1
νk
kpx · qx+k or A1
x:n =
n
k=1
νk
kpx · qx+k.
@freakonometrics freakonometrics freakonometrics.hypotheses.org 8 / 25
9. Historical Mortality
1e-04
1e-03
1e-02
1e-01
1e+00
0 25 50 75 100
Age
Force of Mortality (log scale)
0.00
0.25
0.50
0.75
1.00
0 25 50 75 100
Age
Survival Probability
Gompertz Beard Carrière Heligman-Pollard Empirical
Figure 1: Survival distribution tp0 = P[T > t] and force of mortality
1qx = P[T ≤ x + 1|T > x] (log scale), against historical data.
@freakonometrics freakonometrics freakonometrics.hypotheses.org 9 / 25
10. Husband-Wife dependencies
birth (bf) death (df) age (tf) birth (bm) death (dm) age (tm)
i bf,i df,i tf,i bm,i dm,i tm,i
1 1800-05-04 1835-02-22 34.80356 1762-07-01 1838-01-19 75.55099
2 1778-02-09 1841-02-02 62.97878 1758-07-05 1825-08-03 67.07734
3 1771-01-18 1807-01-17 35.99452 1752-12-28 1815-10-31 62.83641
4 1768-07-01 1814-10-15 46.28611 1768-07-01 1830-12-06 62.42847
5 1766-07-01 1848-01-12 81.53046 1767-02-10 1851-04-22 84.19165
6 1769-06-28 1836-08-28 67.16496 1773-12-17 1825-02-15 51.16222
Table 1: Dataset for the joint life model, father/husband (f) and
mother/spouse (m)
@freakonometrics freakonometrics freakonometrics.hypotheses.org 10 / 25
11. Husband-Wife dependencies - Temporal Stability
-0.2
0.0
0.2
0.4
1800 1810 1820 1830 1840 1850 1860 1870
Cohort of Individuals
Figure 2: Spearman correlation (Tf, Tm) - per year of birth of the father.
@freakonometrics freakonometrics freakonometrics.hypotheses.org 11 / 25
12. Husband-Wife dependencies
Father Lifetime
M
otherLifetim
e
Figure 3: Nonparametric estimation of the copula density, (Tf, Tm).
(using Geenens et al. (2017) estimate)
Here ρS = 0.168, 95% confidence interval (0.166; 0, 171)
@freakonometrics freakonometrics freakonometrics.hypotheses.org 12 / 25
13. Husband-Wife dependencies
Multiple life quantities, e.g. annuities and (whole) life insurance,
ax =
∞
k=1
νk
kpxf
−
∞
k=1
νk
kpxf,xm , and Ax =
∞
k=1
νk
kpxf
−
∞
k=1
νk
kpxf,xm
ax Ax
20 30 40 50 60 70 20 30 40 50 60 70
-2.5%
0.0%
2.5%
5.0%
7.5%
Age
Relativedifferencetotheaverage
Wife still alive Wife deceased
Figure 4: xxx ax and Ax ).
@freakonometrics freakonometrics freakonometrics.hypotheses.org 13 / 25
14. Husband-Wife dependencies
Multiple life quantities, e.g. widow’s pension,
am|f =
∞
k=1
νk
kpxf
−
∞
k=1
νk
kpxf,xm , where tpxf,xm = P Txf
> t, Txm > t,
-11.00%
-10.00%
-9.00%
-8.00%
-7.00%
-6.00%
20 30 40 50 60 70
Age at time of subscription
Relativecostofwidow’spension
Figure 5: Widow’s pension, am|f (relative to independent case a⊥
m|f).
@freakonometrics freakonometrics freakonometrics.hypotheses.org 14 / 25
15. Children-Parents
“inheritance of longevity”
coined in Pearl (1931)
“the life spans of parents and chil-
dren appear only weakly related, even
though parents affect their children’s
longevity through both genetic and
environmental influences”
Vaupel (1988)
“the chance of reaching a high age is
transmitted from parents to children
in a modest, but robust way”
V˚ager¨o et al. (2018)
Figure 6: Son vs. parents Beeton
and Pearson (1901).
@freakonometrics freakonometrics freakonometrics.hypotheses.org 15 / 25
16. Children-Parents
Beeton and Pearson (1901), regression of Txc given Txf
or Txm
slope :
Daughter–mother
0.1968 [0.1910,0.20260]
Son–mother
0.1791 [0.1737,0.18443]
Daughter–father
0.1186 [0.1122,0.12507]
Son–father
0.1197 [0.1138,0.12567]
0
25
50
75
20 40 60 80 100
Age at death of mother
(a) Daughters on mothers
0
25
50
75
20 40 60 80 100
Age at death of mother
(b) Sons on mothers
0
25
50
75
20 40 60 80 100
Age at death of father
(c) Daughters on fathers
0
25
50
75
20 40 60 80 100
Age at death of father
(d) Sons on fathers
Conditional Means GAM Linear regression
Quantile Regression (τ = 0.1) Quantile Regression (τ = 0.9)
Figure 7: Age of the children given
information relative to the parents.
@freakonometrics freakonometrics freakonometrics.hypotheses.org 16 / 25
18. Children-Parents, life expectancy
20 years old 30 years old 40 years old
20 40 60 80 100 20 40 60 80 100 20 40 60 80 100
0
10
20
30
40
Age of the son
(a) Residual life expectancy of sons (in years)
20 years old 30 years old 40 years old
20 40 60 80 100 20 40 60 80 100 20 40 60 80 100
-2
-1
0
1
Age of the son
(b) Deviation from baseline (in years)
Reference
Both parents still alive
Only mother still alive
Only father still alive
Only one parent still alive
Both parents deceased
Figure 9: Residual life expectancy ex with information about parents at
age 20, 30 or 40.
@freakonometrics freakonometrics freakonometrics.hypotheses.org 18 / 25
19. Children-Parents, annuities and insurance
ax Ax
20 30 40 50 20 30 40 50
0.35
0.40
0.45
0.50
0.55
15
17
19
21
Age
Both parents deceased Only one parent still alive Both parents still alive Reference
Figure 10: Annuity ax and whole life insurance Ax , given information
about the number of parents still alive, when child has age x.
@freakonometrics freakonometrics freakonometrics.hypotheses.org 19 / 25
20. Children-Parents, annuities and insurance
ax Ax
20 30 40 50 20 30 40 50
-4.0%
0.0%
4.0%
8.0%
Age
Relativedifferencetotheaverage
Both parents deceased Only one parent still alive Both parents still alive
Figure 11: Annuity ax and whole life insurance Ax , given information
about the number of parents still alive, when child has age x (relative
difference).
@freakonometrics freakonometrics freakonometrics.hypotheses.org 20 / 25
21. Children-Grandparents
Choi (2020), “little is known about whether and how
intergenerational relationships influence older adult mortality”
Child Lifetim
e
G
randparents
Lifetim
e
Child Lifetim
e
G
randparents
Lifetim
e
Child Lifetim
e
G
randparents
Lifetim
e
Figure 12: Copula density, children and grandparents min/max/mean.
@freakonometrics freakonometrics freakonometrics.hypotheses.org 21 / 25
22. Children-Grandparents, life expectancy
10 years old 15 years old 20 years old
25 50 75 100 25 50 75 100 25 50 75 100
0
10
20
30
40
Age of the grandson
(a) Residual life expectancy of grandsons (in years)
10 years old 15 years old 20 years old
25 50 75 100 25 50 75 100 25 50 75 100
-2.5
0.0
2.5
5.0
Age of the grandson
(b) Deviation from baseline (in years)
Reference
All grandparents deceases
Only 1 grandparent still alive
Only 2 grandparents still alive
Only 3 grandparents still alive
All grandparents still alive
Figure 13: Residual life expectancy ex with information about
grandparents, at age 10, 15 or 20.
@freakonometrics freakonometrics freakonometrics.hypotheses.org 22 / 25
23. Children-Grandparents, annuities and insurance
10 years old 15 years old 20 years old
25 50 75 100 25 50 75 100 25 50 75 100
0
10
20
30
40
Age of the grandson
(a) Residual life expectancy of grandsons (in years)
10 years old 15 years old 20 years old
25 50 75 100 25 50 75 100 25 50 75 100
-2.5
0.0
2.5
5.0
Age of the grandson
(b) Deviation from baseline (in years)
Reference
All grandparents deceases
Only 1 grandparent still alive
Only 2 grandparents still alive
Only 3 grandparents still alive
All grandparents still alive
Figure 14: Annuity ax and whole life insurance Ax , given information
about the number of grandparents still alive, when child has age x.
@freakonometrics freakonometrics freakonometrics.hypotheses.org 23 / 25
24. References I
Beeton, M. and Pearson, K. (1901). On the inheritance of the duration of life, and on
the intensity of natural selection in man. Biometrika, 1(1):50–89.
Bowers, N. L., Gerber, H. U., Hickman, J. C., Jones, D. A., and Nesbitt, C. J. (1997).
Actuarial Mathematics. Society of Actuaries, Shaumburg, IL, second edition.
Carriere, J. (1997). Bivariate survival models for coupled lives. Scandinavian Actuarial
Journal, pages 17–32.
Charpentier, A. and Gallic, E. (2020a). La d´emographie historique peut-elle tirer profit
des donn´ees collaboratives des sites de g´en´ealogie ? Population, to appear.
Charpentier, A. and Gallic, E. (2020b). Using collaborative genealogy data to study
migration: a research note. The History of the Family, 25(1):1–21.
Choi, S.-W. E. (2020). Grandparenting and mortality: How does race-ethnicity
matter? Journal of Health and Social Behavior.
Denuit, M., Dhaene, J., Le Bailly De Tilleghem, C., and Teghem, S. (2001).
Measuring the impact of a dependence among insured life lengths. Belgian
Actuarial Bulletin, 1(1):18–39.
Frees, E. W., Carriere, J., and Valdez, E. (1996). Annuity valuation with dependent
mortality. The Journal of Risk and Insurance, 63(2):229–261.
Geenens, G., Charpentier, A., and Paindaveine, D. (2017). Probit transformation for
nonparametric kernel estimation of the copula density. Bernoulli, 23(3):1848–1873.
Luciano, E., Spreeuw, J., and Vigna, E. (2008). Modelling stochastic mortality for
dependent lives. Insurance: Mathematics and Economics, 43(2):234 – 244.
@freakonometrics freakonometrics freakonometrics.hypotheses.org 24 / 25
25. References II
Parkes, C., Benjamin, B., and Fitzgerald, R. G. (1969). Broken heart: A statistical
study of increased mortality among widowers. The British Medical Journal,
1(1):740–743.
Pearl, R. (1931). Studies on human longevity. iv. the inheritance of longevity.
preliminary report. Human Biology, 3(2):245. Derni`ere mise `a jour - 2013-02-24.
Shemyakin, A. and Youn, H. (2001). Bayesian estimation of joint survival functions in
life insurance. Monographs of Official Statistics. Bayesian Methods with
applications to science, policy and official statistics, European Communities,
4891496.
Vaupel, J. W. (1988). Inherited frailty and longevity. Demography, 25(2):277–287.
V˚ager¨o, D., Aronsson, V., and Modin, B. (2018). Why is parental lifespan linked to
children’s chances of reaching a high age? a transgenerational hypothesis. SSM -
Population Health, 4:45 – 54.
Youn, H. and Shemyakin, A. (1999). Statistical aspects of joint life insurance pricing.
1999 Proceedings of the Business and Statistics Section of the American Statistical
Association, 34138.
@freakonometrics freakonometrics freakonometrics.hypotheses.org 25 / 25