What does the population growth rate measure?

The population growth rate specifically measures the rate at which a population increases over a certain period, typically expressed as a percentage. This measurement takes into account various factors including births, deaths, and migration patterns within a population. By focusing on the overall rate of increase, it provides a more comprehensive view of how a population is changing over time, rather than just the number of births or the influence of immigration alone. It helps demographers and policymakers understand trends in population dynamics, assess resource needs, and plan for future growth.