yoshiakihayashida/japan-household-spending-by-age

Japan Household Spending by Age of Household Head (家計調査) + Aging Context

Japan's household consumption by age of household head — 11 categories × 14 age classes, 2000–2024 (家計調査, English columns) — with a 65+ spending gradient joined to the national 65+ population share on iso3 × year.

Why this exists

Japan is the world's oldest large economy, and its official 家計調査 shows how spending shifts as the household head ages. This lifts that detail table out of the Japanese-only source, translates it, and adds a ready-made elderly-vs-average gradient against Japan's 65+ population share. The aging signal is in the data: 65-and-over households spend ~1.13× the average on medical care but ~0.85× on culture & recreation.

Tables

File	Grain	Layer
jpn_household_spending_by_age.csv	iso3, year, age_class, category, amount_jpy	L0
jpn_spending_age_gradient.csv	iso3, year, category, amount_all_avg_jpy, amount_65plus_jpy, elderly_index, elderly_pop_share_pct	L1 (家計調査 + World Bank 65+ share)

Notes on the data

• amount_jpy = average monthly yen per two-or-more-person household. age_class ∈ {Average (all ages), 25-29…80-84, 65 and over}. Income lines are absent (only published for 勤労者世帯).
• elderly_index = amount_65plus_jpy / amount_all_avg_jpy; elderly_pop_share_pct = Japan's 65+ population share that year (World Bank).

Sample queries

-- How elderly spending tilts by category, latest year
select category, elderly_index, elderly_pop_share_pct
from jpn_spending_age_gradient where year = 2024 order by elderly_index desc;

-- Food spending by age of household head
select age_class, amount_jpy from jpn_household_spending_by_age
where category = 'Food' and year = 2024 order by amount_jpy desc;

License & attribution

Combined sources — see the LICENSE file for full terms. When reusing you must:

• 出典：総務省統計局「家計調査」（e-Stat 経由取得）を加工して作成 (PDL 1.0 requires 出典表示 + 加工明記)
• Source: World Bank WDI (CC BY 4.0)