Poverty has various dimensions including income poverty, security poverty, education poverty, health and nutrition poverty, and multiple deprivation. Poverty can be defined as absolute poverty, referring to a threshold income level defined in absolute terms, or relative poverty, defined in relation to another person's living standards or an income distribution parameter. Poverty lines and thresholds are used to measure and identify poverty levels, taking into account the minimum adequate income level to acquire basic goods and services. Common causes of poverty include rapidly rising populations, low agricultural productivity, underutilized resources, low economic development rates, unemployment, lack of capital and entrepreneurship, as well as social and political factors.