WATERING THE NEIGHBOUR'S GARDEN: THE GROWING - CICRED

SON PREFERENCE AND THE MARRIAGE SQUEEZE IN CHINA…
Other measures can be derived analogously from the above three
indices. In order to calculate the numbers of excess males, we develop
three additional indices corresponding to R , R f 1 , and Rm1 denoted as
M f 1 , and M m1 , and
M ,
M =
60
m,x x m,x ,1
∑ Pi × SR2000 × F2000 −
60
f ,x f ,x ,1
Pi × F2000
x =14
x =14
∑ (4)
M f 1 =
60
m,x x m,x
∑ Pi × SR2000 × F2000 −
60
f ,x f ,x,1
Pi × F2000
x =14
x=14
∑ (5)
M m1 =
60
m,x x m,x ,1
∑ Pi × SR2000 × F2000 −
60
f ,x f ,x
Pi × F2000
x =14
x =14
∑ (6)
In order to measure the proportions of the above excess males,
we have another three corresponding indices P , P f 1 and Pm1 ,
P =
60
60
m,x x m,x ,1
∑ Pi × SR2000 × F2000 − ∑ Pi
x =14
x=14
60
∑
x =14
Pi m,x x m,x,1
× SR2000 × F2000
P f 1 60
60
m,x x m,x
∑ Pi × SR2000 × F2000 − ∑ Pi
x =14
=
60
x =14
∑
x =14
m,x x m,x
Pi × SR2000 × F2000
P m1 60
60
m,x x m,x,1
∑ Pi × SR2000 × F2000 − ∑ Pi
x =14
=
60
x =14
2.2. Data
∑
x =14
m,x x m,x,1
Pi × SR2000 × F2000
f ,x f ,x ,1
× F2000
= R −1
f ,x f ,x,1
× F2000
f ,x f ,x
× F2000
R (7)
= R f 1 −1
R f 1 (8)
= Rm1 −1
R m1 (9)
The data used in the chapter include: age-sex-specific first
marriage frequencies in the baseline year 2000, age-sex-specific
marriage frequencies of those who are first married or married to a
first married spouse and the projected age-sex-specific population data
for 2001–2050.
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