The demographics of Finland is monitored by the Statistics Finland. Finland has a population of almost 5.6 million people, ranking it 19th out of 27 within the European Union. The average population density in Finland is 19 inhabitants per square kilometre (49/sq mi), making it the third most sparsely populated country in Europe, after Iceland and Norway. Population distribution is extremely uneven, with the majority of the population concentrated in the southern and western regions of the country. The majority of the Finnish population - approximately 73% - lives in urban areas. Approximately 1.6 million, or almost 30%, reside solely in the Helsinki Metropolitan Area. Conversely, the Arctic Lapland region contains only two inhabitants per square kilometre (5.2/sq mi).
The current population of Nepal is 29,164,578 as per the 2021 census. The population growth rate is 0.92% per year.
China is the second most populous country in Asia as well as the second most populous country in the world, with a population of 1,425,671,352.
Rural flight is the migratory pattern of people from rural areas into urban areas. It is urbanization seen from the rural perspective.
The population of the United Kingdom was estimated at over 67.0 million in 2020. It is the 21st most populated country in the world and has a population density of 270 people per square kilometre, with England having significantly greater density than Wales, Scotland, and Northern Ireland. Almost a third of the population lives in south east England, which is predominantly urban and suburban, with about 9 million in the capital city, London, whose population density is just over 5,200 per square kilometre.
Demography, also known as Demographics, is the statistical study of populations, especially human beings.
Human migration is the movement of people from one place to another with intentions of settling, permanently or temporarily, at a new location.
In demography, demographic transition is a phenomenon and theory which refers to the historical shift from high birth rates and high death rates in societies with minimal technology, education and economic development, to low birth rates and low death rates in societies with advanced technology, education and economic development, as well as the stages between these two scenarios. In economic growth, the demographic transition has swept the world over the past two centuries,and the unprecedented population growth of the post-Malthusian period was reversed, reducing birth rates and population growth significantly in all regions of the world, and enabling economies to translate more of the gains of factor accumulation and technological progress into per capita income growth. The demographic transition strengthens economic growth process by three changes: (i) reduced dilution of capital and land stock, (ii) increased investment in human capital, and (iii) increased size of the labor force relative to the total population and changed age population distribution. Although this shift has occurred in many industrialized countries, the theory and model are frequently imprecise when applied to individual countries due to specific social, political and economic factors affecting particular populations.
The dependency ratio is an age-population ratio of those typically not in the labor force and those typically in the labor force. It is used to measure the pressure on the productive population.
Population geography relates to variations in the distribution, composition, migration, and growth of populations. Population geography involves demography in a geographical perspective. It focuses on the characteristics of population distributions that change in a spatial context. This often involves factors such as where population is found and how the size and composition of these population is regulated by the demographic processes of fertility, mortality, and migration.
Population momentum is a consequence of the demographic transition. Population momentum explains why a population will continue to grow even if the fertility rate declines. Population momentum occurs because it is not only the number of children per woman that determine population growth, but also the number of women in reproductive age. Eventually, when the fertility rate reaches the replacement rate and the population size of women in the reproductive age bracket stabilizes, the population achieves equilibrium and population momentum comes to an end. Population momentum is defined as the ratio of the size of the population at that new equilibrium level to the size of the initial population. Population momentum usually occurs in populations that are growing.
In demography and medical geography, epidemiological transition is a theory which "describes changing population patterns in terms of fertility, life expectancy, mortality, and leading causes of death." For example, a phase of development marked by a sudden increase in population growth rates brought by improved food security and innovations in public health and medicine, can be followed by a re-leveling of population growth due to subsequent declines in fertility rates. Such a transition can account for the replacement of infectious diseases by chronic diseases over time due to increased life span as a result of improved health care and disease prevention. This theory was originally posited by Abdel Omran in 1971.
Natural fertility is the fertility that exists without birth control. The control is the number of children birthed to the parents and is modified as the number of children reaches the maximum. Natural fertility tends to decrease as a society modernizes. Women in a pre-modernized society typically have given birth to a large number of children by the time they are 50 years old, while women in post-modernized society only bear a small number by the same age. However, during modernization natural fertility rises, before family planning is practiced.
Ansley Johnson Coale, was one of America's foremost demographers. A native to Baltimore, Maryland, he earned his Bachelor of Arts in 1939, his Master of Arts in 1941, and his Ph.D. in 1947, all at Princeton University. A long-term director of the Office of Population Research at Princeton, Coale was especially influential for his work on the demographic transition and for his leadership of the European Fertility Project.
In Demography, the rate of natural increase (RNI), also known as natural population change, is defined as the birth rate minus the death rate of a particular population, over a particular time period. It is typically expressed either as a number per 1,000 individuals in the population or as a percentage. RNI can be either positive or negative. It contrasts to total population change by ignoring net migration.
Michael R. Rose is a Professor in the Department of Ecology and Evolutionary Biology at the University of California, Irvine.
Demographically, as in other more recent and thus better documented pre-modern societies, papyrus evidence from Roman Egypt suggests the demographic profile of the Roman Empire had high infant mortality, a low marriage age, and high fertility within marriage. Perhaps half of the Roman subjects died by the age of 5. Of those still alive at age 10, half would die by the age of 50.
Population projections are attempts to show how the human population statistics might change in the future. These projections are an important input to forecasts of the population's impact on this planet and humanity's future well-being. Models of population growth take trends in human development and apply projections into the future. These models use trend-based-assumptions about how populations will respond to economic, social and technological forces to understand how they will affect fertility and mortality, and thus population growth.
Political demography is the study of the relationship between politics and population change. Population change is driven by classic demographic mechanisms – birth, death, age structure, and migration.
The Neolithic demographic transition was a period of rapid population growth following the adoption of agriculture by prehistoric societies. It was a demographic transition caused by an abrupt increase in birth rates due to the increased food supply and decreased mobility of farmers compared to foragers. Eventually the mortality rate in farming societies also increased to the point where the population stabilised again, possibly because settling down in one place, in close proximity to animals, encouraged the spread of zoonotic and waterborne diseases. The transition is estimated to have taken about a thousand years on average, although the onset and duration of the transition varied widely in the different parts of the world.
