公営住宅に関する基礎的研究 : その 2. 公営住宅居住者の社会階層一世帯収入構成

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The ratio of public houses to all national housing stock is 4.9% in 1973. And this ratio is higher in the big city area than in the local city. In this case-study, ratios are ranged from 6.8% to 2.3%. On the other hand, almost of tenants of public houses lived in the rented houses before they have resided in the public houses. So, the ratio of public houses to the residents of all rented houses is 11.7% (Table 1-9, Fig.1-7). And these ratios scarcely varied in different areas. The purpose of this paper is to analyze positively the income of households by yearly income quintile groups. The conclusions are as follows; 1. In those days that the public housing law was enacted as a system, the qualification as public housing's applicants was open to 80% of nations. However, after then the qualification has been gradually restricted toward lower income classes. At present, lower 35% groups of the nation's income cummulative distribution have the qualification as applicants to the first class public housing, and only lower 15% groups do to the second class. 2. The income distribution of the households of the public-funded rental housing (it contains Public Housing plus Public Corporation Houses for rental, Japan Housing Corporation Houses for rental and Other Public-funded Houses for rental) was higher than the average national income distribution until 1963, after then it has been inclining to the lower classes (Table 1-5, Fig. 1-3). 3. The income distribution of the households of public housing forms steep peaks in the first and second income quintile groups. And its peak is more acute in the first income quintile groups in the local city. On the contrary, it levels to all of income quintile groups in the big city (Fig. 1-4, 1-5). 4. There is every indication that more concentrates to lower income classes in the second class public housing residents, and its concentration is steeper in the local city. The first income quintile group accounts for about 50% of the second class public housing households in different localities (Table 1-6, Fig.1-6). 5. The differencies of the income between the first class public housing residents [and the second class public housing residents are remarkably larger in the big city in comparison with the local city and the following relations in the income of the public housing residents are recognized (Fig. 1-6). That is; the first class public housing residents in the big city>the second class public housing residents in the big city≒the first class in the local city>the second class in the local city≒the first class in the local rural city>the second class in the local rural city. 6. The income composition of the first class public housing in the big city is similar to that of the average nation (Fig. 1-6). 7. In the big city, the ratios of the public housing to the rented houses residents almost level for all of the income quintile groups (Fig. 1-7). 8. In public housing system, if a tenant's income rises above the prescrived income standards after the occupancy, he, namely the high-income occupant, has to pay the increased extra rent within the range governed by law. This high-income occupant ratio is more than twice in the big city in comparison with the other local city. The ratio is over 40% in the big city area. And it is more in the second class public housing household than in the first class. The high-income occupant ratio of the second class public housing in the big city is over 50% (Table 1-7). 9. If the prescrived income standards are raised up to about 50% of the nation's income cummulative distribution to the first class public housing, and about 20% to the second class, which was so in 1963, the problems of the high-in come occupants nearly come to the settlements.
社団法人日本建築学会の論文
1976-11-30

公営住宅に関する基礎的研究 : その 2. 公営住宅居住者の社会階層一世帯収入構成

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