Zimmer, Zachary. “Health and living arrangement transitions among China’s oldest-old,” Research on Aging 27(5): 526–555. (abstract)

Zimmer, Zachary and Julia Dayton. “Older adults in sub-Saharan Africa living with children and grandchildren,” Population Studies 59(3): 295–312.*

2004
Zimmer, Zachary, Xianghua Fang, Toshiko Kaneda, Zhe Tang, and Julia Kwong. "Trends and transitions in children's coresidence with older adults in Beijing municipality," Policy Research Division Working Paper no. 187. New York: Population Council. (abstract) (PDF)

2003
Zimmer, Zachary. “A further discussion on revisiting the classification of household composition among elderly people,” Journal of Cross-Cultural Gerontology 18(3): 247–250.*

Zimmer, Zachary and Julia Dayton. "The living arrangements of older adults in sub-Saharan Africa in a time of HIV/AIDS," Policy Research Division Working Paper no. 169. New York: Population Council. (abstract) (PDF)

Zimmer, Zachary and Julia Kwong. “Family size and support of older adults in urban and rural China: Current effects and future implications,” Demography 40(1): 23–44. (abstract)

2002
Bongaarts, John and Zachary Zimmer. "Living arrangements of the elderly in the developing world: An analysis of DHS household surveys,” Journals of Gerontology Series B: Psychological Sciences and Social Sciences 57(3): S145–S157.* Also issued as Policy Research Division Working Paper no. 148.  New York: Population Council, 2001. (abstract) (PDF) (PDF in Arabic)

2001
Zimmer, Zachary and Sovan Kiry Kim. "Living arrangements and socio-demographic conditions of older adults in Cambodia,” Journal of Cross-Cultural Gerontology 16(4): 353–381.* Also issued as Policy Research Division Working Paper no. 157. New York: Population Council,  2002. (abstract) (PDF)