Rate of natural increase. In demographics, the rate of natural increase is the crude birth rate minus the crude death rate of a population. When looking at countries, it gives an idea of what position in the Demographic Transition Model, but to find out how much a country is growing, the population growth rate should be observed.
Usually developing countries have a positive or high natural increase rate. Developed countries have a negative/neutral or low natural increase rate, but many developed countries have their population increasing due to immigration despite their negative RNI.
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