The world is undergoing a major demographic upheaval with three key components: population growth, changes in fertility and mortality, and associated changes in population age structure..
More people means an increased demand for food, water, housing, energy, healthcare, transportation, and more.
And all that consumption contributes to ecological degradation, increased conflicts, and a higher risk of large-scale disasters like pandemics..
The cons of high population density include limited resources, increased levels of pollution, social problems, and pressure on the natural environment.
Population density varies greatly depending on the country, region, city, or town..
Demographics suggest that labor force growth will be considerably slower than it has been in recent decades, and this will weigh on long‐run economic growth.
In addition, in theory, the aging of the population may also have a negative effect on structural productivity growth..
The main challenges posed by the end of demographic transition include a lack of resources to provide for the entire global population, the effects of climate change, contamination and population ageing.
Each region faces a distinct future based on levels of economic development, demographics and geography..
Suffice it to note that there are no similar debates in demography
An alternative to conceptualizing society as functioning as a whole (holism) is to argue that society is no more than the sum of its parts and that macro-level explanations are ultimately reducible to explanations about the behaviour of individuals (methodological individualism)
311), demographers are ‘inheritors of nineteenth century positivism’ and this has resulted in the dominance of quantitative methods and a conviction that for demography to be a science, the edifices of theory should be quantitatively testable
Yet, the meaning of the term science is rarely specified
A demographic environment allows marketers to focus in on the group most likely to buy a product, so they can create the products these people want to buy and the marketing messages they need to hear
But there are some drawbacks to this approach in terms of the time and cost commitment
Lack of belief in any deities, without belief that there are none
