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Table 1 Definitions of poverty indices

From: Economic downturn results in tick-borne disease upsurge

GDP - gross domestic product:
The market value of all final goods and services produced within a country in a given period of time.
Equivalised disposable income (used below):
Income adjusted for household size, achieved by assigning different members of a household the following weighting (taken from OECD): 1 for the first adult (>14 years), 0.5 for each subsequent adult and 0.3 for each person ≤14 years old.
At-risk of poverty:
The share of persons with an equivalised disposable income below the at-risk-of- poverty threshold, which is set at 60% of the national median equivalised disposable income.
Relative median at-risk-of-poverty gap (abbreviated to poverty gap):
The difference between the at-risk-of-poverty threshold and the median equivalised disposable income of persons below the at-risk-of-poverty threshold, expressed as a percentage of the at-risk-of-poverty threshold.
In-work risk of poverty:
The share of persons who are employed whose household equivalised disposable income is below 60% of national median equivalised income.