Dependency Ratio: The dependency ratio is the comparison between the economically active population (working-age individuals) and the dependent population (children and elderly). It helps measure the potential economic burden on society.
Social Security System: The social security system refers to government programs that provide financial assistance to retired workers, disabled individuals, and their families. It helps alleviate economic burdens faced by elderly populations.
Healthcare Expenditure: Healthcare expenditure refers to the total amount of money spent by a country on healthcare services. An increase in healthcare expenditure due to an aging population can contribute to economic burdens.