Canadian Income Survey (CIS)

Gap ratio of economic family, proportion

Gap ratio refers to the difference between the low income threshold and the family (or household) income, expressed as a percentage of the low income threshold. For those with negative income, the gap ratio is set to 100. As a measure of depth of low income, the statistic takes the form of the average of the gap ratio calculated over the population of individuals below the income line.

Economic family refers to a group of two or more persons who live in the same dwelling and are related to each other by blood, marriage, common-law union, adoption or a foster relationship. A couple may be of opposite or same sex.

By definition, all persons who are members of a census family are also members of an economic family. Examples of the broader concept of economic family include the following: two co-resident census families who are related to one another are considered one economic family; co-resident siblings who are not members of a census family are considered as one economic family; and, nieces or nephews living with aunts or uncles are considered one economic family.

The data for this variable are reported using the following measurements:

  • Percentage
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