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Population pyramids: Powerful predictors of the future - Kim Preshoff

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The difference between Nigeria and Russia population pyramid is huge.

Nigeria has a pyramid shaped population graph which means that they have high birth rates and high death rates. There are huge infant population but the working population decreases which can be because of several factors. This shows high infant mortality rate.  As you go up in the age column you will find that the death rate also decreases which suggests poor medical facilities and medications.

Russia on the other hand has comparatively less infant population. However, they have a large working population. Moreover, there death rates are high as aged people populations are high.

Russia has less living area to live comparatively. This is because there are lot of areas that are not discovered and areas where humans cannot settle like mountains, cold desert. In Russia the population is sparsely populated and Nigeria has dense population.

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A population pyramid is dived into 3 sections  pre-reproductive, reproductive and post- reproductive.

My looking at these 3 sections we can determine is a population is ageing ,growing or slowly decreasing.This provide us insight into how developed a country is   as a growing a economy would be relent on agricultural.There would have a very wide base and it starts tampering the higher it goes showing there isn't much health care nor a high life expectancy

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Demographers can easily recognize the past trend and interpret the future population trend through visualization method of population pyramid. It helps understand a country's situation by taking into account internal characteristics (age and gender) and identify whether a nation will have rapid population increase or population crash.

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Analysis of the population is a very difficult job. Therefore, demographicalogist divided population in Male and Female. Furthermore, it is divided into different age groups.

Gender showcases the ratio of male and female. For example Belarus, Russia, etc are female dominating countries. Age showcases the infant population, working class population through which GDP and unemployment rates can be calculated. The last is the aged population which showcases the medical facility and government arrangements are better off. For example Italy having low death rate and high aged population.

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I learnt what a population pyramid is. It helps to show a countries population of both, male and female in three intervals; pre-reproductive, reproductive and post reproductive.

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Expansive population pyramids have a largest population size in the lower age groups and the ages further up  and similar in size.

Constructive  population pyramids  are population pyramids which have a large population in the higher age groups.

Stationary population pyramids are ones where all the population groups are similar in size.

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Shape of a country’s population pyramid can help us analyze a country’s demographic position. Broad bottomed pyramid signifies high younger population which is often the case in poorer countries due to high mortality rate caused by lack of education, contraception, healthcare services etc. This diagram changes as we move towards MEDCs due to more health, sanitation, food and family planning facilities. This way we can differentiate working and non-working population of a nation. Therefore, population pyramid also give internet the economic state of a country.

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Russia has less newborn child populace. Nonetheless, they have a huge working populace. Besides, there death rates are high as matured individuals populaces are high.

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The population pyramid does not only act as a model to showcase information about a country's age, but it can also be used to predict socio-economic conditions of the place. This is because of the segregation of the population into pre-reproductive, reproductive and post-reproductive.

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The analysis of the population pyramid can help us understand why the shape of the model is the way it is. A smaller base signifies less reproductive rates - as less kids are born. If the base of the pyramid is the largest, it showcases higher infant mortality rates - which means poverty or worse economic conditions. This showcases not only the economic, but also the social state of the country. More things such as healthcare of the country and quality of life there can also be predicted.