Title: Fertility and Sex Selection: Analysis and Policy in Asia
1Fertility and Sex Selection Analysis and Policy
in Asia
- Public Finance Lunch
- October 30th, 2006
2Overview
- Motivating Topic The Missing Girls of China
India - Background (focus on China)
- Theoretical Model of Sex Selection Decision
- Empirical Results
- Policy Implications
3Chinese Births following Girls
One Child Policy
4Section 1Fertility Policy in China
5Fertility Policy in China
- Pronatalist Policy 1949-1969
- Two is Enough 1970-1979
- Strict One Child Policy 1979-1983
- Opening Small Holes, Close Large Ones 1984
- Today Federalism
6Fertility Policy in China
- One Child Policy (35)
- Urban residents, population near cities
- 1.5 Child Policy (54)
- Rural areas in inner provinces
- Two Child Policy (10)
- Rural areas in outer provinces
- Three Child Policy (1)
- Residents in very remote areas
83 of Missing Girls
7China One Size does not Fit All
8Enforcement of Policy
First, we employ reasoning and education. Then,
we order a pregnancy fine and forced abortion.
For persons with above-quota births, we mete out
fines for those with many births, we confiscate
land and revoke household registration.
Chinese 1995 Survey on birth control practices
Scharping 2003, p. 147
9Fertility Fines in China
Source Scharping 2003
10Section 2Impact of Declining Fertility on the
Sex Ratio
11High Fertility, Low Sex Ratios
Low Fertility, High Sex Ratios
12High Fertility, Low Sex Ratios
Low Fertility, High Sex Ratios
13Q Should we think the cost of sex ratio
distortion is large?
14Welfare Implications of Sex Selection
- Dead Weight Loss in Marriage market
- Among those who marry, women do relatively better
and men do relatively worse. ZERO SUM - Increase in unmatched men imposes DWL
- 23 million boys will not find Chinese brides
- The guang guan Bare Branches
- It wont fix itself!
- Parents prefer an unmarried son to a married
daughter.
Poston and Glover (2000)
15Policy Current Proposed
- Care for Girls campaign
- Outlawing sex selection
- Black Market for ultrasound
- 3. Raise fertility limits???
Not Working
Price is 6-40 - Cheap
Original Problem!
4. Social Insurance for those fail to have a son
Thought experiment. If sons provide a dollar
value ?, one could tax those with a son ½ of ?
and reward those with daughters with ½ of ?
16Section 3Sequential Model of a Mothers Decision
17Decision 1 Having a 2nd Child
Stop
G
G
Boy
Girl
Decision 2 Sex Selection
GB
G(G)
Abort
Decision 3 Having a 3rd Child
Stop
GG
GG
Boy
Girl
GGB
GG(G)
Decision 4 Sex Selection
Abort
GGG
18Features of the Model
- Mothers place a value of ? on a first-born son.
- Mothers want a son but face a fertility limit
- that is enforced by dollar fines F1 and F2
- for 1st and 2nd extra children. (2nd and 3rd
Births) - 3. Mothers have access to a sex selection
technology that is 100 effective and costs A. - 4. Mothers with a son never have another child.
19Decision 1 Having a 2nd Child
Stop
G
G
Boy
Girl
Decision 2 Sex Selection
GB
G(G)
Abort
Decision 3 Having a 3rd Child
Stop
GG
GG
Boy
Girl
GGB
GG(G)
Decision 4 Sex Selection
Abort
GGG
204th Decision Abort or Stop
- Abortion Payoff
- Dont Abort Payoff
21Intuition of 4th Decision
- Abortion when value of a son is large relative
to cost of abortion
22Decision 1 Having a 2nd Child
Stop
G
G
Boy
Girl
Decision 2 Sex Selection
GB
G(G)
Abort
Decision 3 Having a 3rd Child
Stop
GG
GG
Boy
Girl
GGB
GG(G)
Decision 4 Sex Selection
Abort
GGG
233rd Decision Kid or Stop
Payoff of Abortion
Payoff of Stoppingexp(0)
24Intuition of 3rd Decision
- Have a kid when son preference is large relative
to fine. - Have a kid when payoff in round 4 is large, which
happens when son preference exceeds abortion cost
25Decision 1 Having a 2nd Child
Stop
G
G
Boy
Girl
Decision 2 Sex Selection
GB
G(G)
Abort
Decision 3 Having a 3rd Child
Stop
GG
GG
Boy
Girl
GGB
GG(G)
Decision 4 Sex Selection
Abort
GGG
262nd Decision Abort or Keep
Payoff of 3rd Kid
Payoff of Stoppingexp(0)
27Intuition of 2nd Decision
- Abort when ? A gtgt E(V3)
- E(V3) .51? F2 .49 E(V4)
- Abort if third fine is large!
Extreme case Mother will never die without son.
Now or Later scenario ? Abort when F2 gt .49A
28Decision 1 Having a 2nd Child
Stop
G
G
Boy
Girl
Decision 2 Sex Selection
GB
G(G)
Abort
Decision 3 Having a 3rd Child
Stop
GG
GG
Boy
Girl
GGB
GG(G)
Decision 4 Sex Selection
Abort
GGG
291st Decision Kid or Quit
Payoff of 3rd Kid
Payoff of Stopping
30Heterogeneity
Maximum Likelihood Estimation Choose optimal
?1- ?5 given observed data
31Basic Intuition of the Model
- Abort 3rd Girl if Value of Son Exceeds Marginal
Cost (?gtA) - Have 3rd Child if Value of Natural or Augmented
chance of having a son exceeds the fine. - Implication Those who wont abort more likely
to stop. - Abort 2nd Girl to Avoid a 3rd Child! Fine is
expensive. - Simple Case For mothers who know they will
abort eventually, the decision is Now or
Later. - When the (3rd Child Fine gt 49 of Abortion
cost), - abort the second child.
32Section 3Empirical Calibration of the Model
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35Policy Simulations
- Q What if you could reduce ? by subsidizing
daughters? How much would that cost? - A A lot. But as I will show, it will accomplish
the dual objective of lowering fertility and
reducing the sex ratio.
36Lower Female Deficit
Declining Efficiency
Indirect cost of Policy
Direct cost of Policy
Falling Fertility
37Key Lessons
- Cautionary tale of policy with unanticipated
consequences - This problem is around the horizon in India. Fix
it now. - Only way to address dual concern of fertility
rates and sex ratio is by reducing the demand for
sons.
38THE END
39Acknowledgements
- Professors Ron Lee, David Card, Ken Chay,
Michael Greenstone, Martha Bailey, Raj Chetty,
Emmanuel Saez, Jerome Adda, Kenneth Train, Bill
Lavely, Susan Greenhalgh, Wang Feng, David Romer,
Ken Wachter - Students Damon Jones, Kevin Stange, Claudia
Sitgraves, Ethan Jennings, Sanny Liao, Danzhen You
40Stop
Decision 1
Have 1st kid
G
G
Have a 3rd Child if .51? F2 EMAX(V4) gt 0
Girl
Boy
V 0
V1 ? F1 V2 ? F1 - A
GB
G(G)
Decision 2
Abort
Abort if ? A gt EMAX(V3)
Carry to Term
Stop
GG
GG
V1 F1
Decision 3
Girl
Boy
Have 2nd kid
V1 ? F1 F2 V2 ? F1 F2 A
GGB
GG(G)
Decision 4
Abort
Abort if ? A gt 0
GGG
Carry to Term
V1 F1 F2
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