Glossary for Terms 793Unit labour union Unit labour union refers to a labour union whose members are workers in their individual capacity, and which has no subordinate units (such as branches) as members. Joint labour union Joint labour union refers to an organisation whose members are workers in their individual capacity, and which has subordinate units (such as branches). Total disputes Sum of the disputes accompanied by dispute acts and the disputes unaccompanied by dispute acts but mediated by a third party such as labour relations commissions. Employees affected The maximum number of employees of unions or workers' group during the duration of the labour dispute, irrespective of being involved in dispute acts or not. Employees involved The number of persons actually engaged in dispute acts. 20 Prices The city groups < Consumer Price Index > The city groups are classified according to the population as of 1 October 2015. Major cities refer to designated cities and Ku-area of Tokyo-to; middle cities, those with population of over 150 thousand but under a million ; small cities A, those with population of over 50 thousand but under 150 thousand; and small cities B, towns and villages, those with population of less than 50 thousand, towns and villages. Tokyo metropolitan area Tokyo metropolitan area refers to municipality areas including existing urban areas and suburban development areas defined under the National Capital Region Development Act. Osaka metropolitan area Osaka metropolitan area refers to municipality areas including existing urban areas and suburban development areas defined under the Kinki Region Development Act. Nagoya metropolitan area Nagoya metropolitan area refers to municipality areas including urban areas defined under the Chubu Region Development Act. 3 metropolitan areas 3 metropolitan areas refer to Tokyo metropolitan area, Osaka metropolitan area and Nagoya metropolitan area. Local districts area Local districts area refers to cities other than three major metropolitan areas. 21 Housing and Land Dwellings A dwelling is defined as a permanent building or a perfectly separated part of a building, such as a detached house or an apartment of an apartment house, built or reformed for habitation by one household. "Perfectly separated" means that the dwelling is separated by fixed concrete or wooden walls. A dwelling for habitation of one household must satisfy the following four conditions with regard to facilities: (1) at least one room, (2) sink for cooking for exclusive use, (3) toilet for exclusive use, and (4) entrance for exclusive use (i.e. it may be a direct access to the street, or an access to the hallway which occupants and visitors can use). For conditions (2) and (3), facilities for joint use are included, if they can be used at any time and can be accessed without passing through a floor of any other household. Principal households and shared households Households living in a dwelling are classified into principal households and lodging households. If a household is occupying an entire dwelling, the household is defined as "principal household". In case that two or more households are living together in a dwelling, the main household (such as owner or tenant) is defined as "principal household" and others are defined as "shared household". When two or more single persons are living together in a dwelling, for example, an unmarried person living together with his / her friends, one of them is defined as "principal household" and each of the other persons is defined as "shared household". Housing area standards Housing area standards have been established as goals of the Basic Plan for Housing (National Plan) (Cabinet Decision, March 2021) to ensure and improve stable housing for people, by setting standards pertaining to housing areas. 22 Family Income and Expenditure Household consumption trend index (CTI Micro) This index expresses the average consumption expenditure of households with the monthly average in the base year as 100. It is calculated by combining the results of the Family Income and Expenditure Survey, the Survey of Household Economy, and the Expenditure Monitor Survey for One-Person Households. Total consumption trend index (CTI Macro) This index expresses the total consumption expenditure of all households in Japan with the monthly average in the base year as 100. The total amount of consumption expenditure is estimated using a time-series regression model and retroactively revised at the time of publication each month. The target of estimation is different from that of the Household Consumption Trend Index, and fluctuations in the Total Consumption Trend Index include the effects of changes in the number of households. 23 Social Security Social insurance Social insurance is the centre of Japan's social security system and consists of medical insurance, pension insurance, long-term care insurance, and labour insurance. It is a "mutual assistance" system that provides against risks such as disease and unemployment and is financed by the insurance premiums paid by the citizens who are the beneficiaries, using the insurance system. The insurers (entities that administer the insurance) are the national government, municipalities, and public organisations. All individuals who meet certain conditions are obliged to join the system as insured persons (subscribers). Minimum housing area standard This is the level of housing area that should be attained by every household as a basis absolutely essential for healthy and cultural living depending on the number of household members. Targeted housing area standard This is the level of housing area that should be attained by every household as a prerequisite for realizing comfortable housing conditions in response to varied lifestyles depending on the number of household members.
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