TY  - JOUR
A1  - Nguyen, Khoa
A1  - Duong, Tuyen
T1  - The impact of household structure on fertility: A study in Vietnam
Y1  - 2026/04/09
JF  - Demographic Research
JO  - Demographic Research
SN  - 1435-9871
SP  - 677
EP  - 718
DO  - 10.4054/DemRes.2026.54.22
VL  - 54
IS  - 22
UR  - https://www.demographic-research.org/volumes/vol54/22/
L1  - https://www.demographic-research.org/volumes/vol54/22/54-22.pdf
L2  - https://www.demographic-research.org/volumes/vol54/22/54-22.pdf
L3  - https://www.demographic-research.org/volumes/vol54/22/files/readme.54-22.txt
L3  - https://www.demographic-research.org/volumes/vol54/22/files/demographic-research.54-22.zip
N2  - Background: A declining fertility rate and aging population are major challenges for Vietnam. 

Methods: This study utilizes panel data from the Vietnam Access to Resources Household Survey, conducted from 2008 to 2016, tracking 1,200 households over nine years. A fixed effects model was employed to control for unobserved factors, such as cultural traditions and fertility motivations, thereby addressing endogeneity issues commonly encountered in previous research. 

Results: The results indicate that the presence of grandparent(s) in a household has a positive impact on the number of children born (particularly when both grandparents are present), with estimates ranging from 0.0771 (95% CI: 0.0175 to 0.1368) for both grandparents to 0.1373 (95% CI: 0.0824 to 0.1922) overall. This effect is especially prominent in the Central Highlands and the Northern Midlands/Mountainous Area. In contrast, the effect is less pronounced in the Mekong River Delta, likely due to socioeconomic factors and data limitations. 

Contribution: This study highlights the importance of household structure in shaping fertility behavior and provides policy recommendations to support multigenerational households and promote sustainable fertility rates in Vietnam. 

ER  -