Development of a temporally harmonized asset index: evidence from across 50 years of follow up of a birth cohort in Guatemala

Table 2 Ownership of assets and housing characteristics across cohort households surveyed as part of INCAP Oriente Longitudinal Study (1967–2018) by study wave

	1967 (n = 547)	1975 (n = 755)	1987 (n = 617)	2002 (n = 820)	2016 (n = 1075)	2018 (n = 1145)
Radio	0.32	0.53	0.58	0.21	0.30	0.22
Record Player	n.a.	0.02	0.06	n.a.	n.a.	n.a.
Sewing Machine	n.a.	0.11	0.10	0.10	0.19	0.18
Refrigerator	0.01	0.02	0.04	0.27	0.67	0.71
Television	n.a.	0.01	0.22	0.77	0.92	0.92
Bicycle	0.01	0.03	0.11	0.53	0.51	0.45
Motorcycle	n.a.	0.00	0.01	0.01	0.24	0.31
Automobile	n.a.	0.00	0.01	0.08	0.27	0.27
Video player	n.a.	n.a.	n.a.	0.09	0.55	0.47
Sound system	n.a.	n.a.	n.a.	0.38	0.59	0.57
Computer	n.a.	n.a.	n.a.	0.01	0.34	0.30
Telephone	n.a.	n.a.	n.a.	0.31	0.95	0.96
Washing machine	n.a.	n.a.	n.a.	n.a.	0.19	0.21
Owns land	n.a	0.74	0.80	0.53	0.73	0.67
Owns house	0.84	0.80	0.82	0.78	0.81	0.83
Rooms per member	0.61	0.61	0.60	0.77	1.09	1.13
High quality floor	0.04	0.11	0.37	0.76	0.90	0.91
High quality roof	0.73	0.72	0.89	0.98	0.99	0.99
High quality walls	0.46	0.56	0.81	0.93	0.98	0.98
Separate kitchen	0.58	0.73	0.90	0.91	0.95	0.97
Formal cooking medium	0.01	0.46	0.67	0.83	0.91	0.87
Sanitary installation	0.05	0.16	0.57	0.89	0.98	0.99
Electricity	0.00	0.11	0.72	0.96	0.98	0.97
Improved water source	0.03	0.10	0.42	1.00	0.98	0.97
Improved sewage system	n.a.	n.a.	n.a.	0.11	0.52	0.54

The first four waves of data collection include households of cohort members residing in original study villages (1967, 1975, 1987, 2002) and the last two waves are surveys of households of cohort members living anywhere in Guatemala (2015–16, 2017–18). Details of the categorization schema for assets and housing characteristics are provided in Supplementary Table 1

ISSN: 1471-2288