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Is true about demographic transitions?
Demographic transition refers to a shift in death rates followed by a shift in birthrates, and its associated population boom;Most developing nations are going through a demographic transition today.Demographic transition refers to a shift in death rates followed by a shift in birthrates, and its associated population boom. Most developing nations are going through a demographic transition today.
To what extent can the demographic transition model help us to understand future population trends in MEDCs?
The Demographic Transition Model' Does the DTM still provide a 21st century framework for looking at demographical change in countries which are experiencing development? To what extent is the tool really useful or should we make it obsolete?The "Demographic Transition" is a model that describes population change over time. It is based on an interpretation begun in 1929 of the observed changes, or transitions, in birth and death rates in industrialized societies over the past two centuries.Figure 1The term "model" means that it is an idealized, composite picture of population change in these countries. The model is a generalization that applies to these countries as a group but may not accurately describe all individual cases. Whether or not it applies, or should be applied to less developed societies today remains to be disputed.The DTM ( demographic Transition model ) (F.1) was first observed in the two centuries preceding 1950 in what are today's developed countries. Prior to the transition, these developed countries experienced high death rates matched by high birth rates, resulting in a relatively stable population size over time. But then improving living standards and public health measures caused death rates to drop, followed by a gradual drop in birth rates, which by the 1970s once again matched death rates. Between the onset-of-mortality decline and the drop in birth rates, population surged in developed countries, actually quadrupling. But the original 4 stages are over, and most developed countries are now projected to experience population shrinkage in the future (stage 5 see f.1). This historical evidence has proved so far that countries that have experienced industrial change have gone through the stages of the transition model; these countries are mainly in Europe and North America.Figure 2After observing these changes in countries like Britain and Germany Demographers predicted that today's NIC's (newly industrialised countries) would undergo a similar transition. Indeed, in the period following World War II, mortality decline accelerated in these countries. As the demographic transition model would predict, that led to a surge in population growth (See F.2) Also as expected, the death rate decline was later followed by a compensatory drop in birth rates. However instead of taking two centuries for the process to complete itself as it did in the developed countries, it will happen in less than one century.There are many weaknesses of the DTM being used as a tool for predictions in demographic change. The model assumes that in time all countries pass through the same four/ five stages. It now seems unlikely, however, that many LEDCs, especially in Africa, will ever become industrialised.The model assumes that the fall in the death rate in Stage 2 was the consequence of industrialisation. Initially, the death rate in many British cities rose, due to the insanitary conditions which resulted from rapid urban growth, and it only began to fall after advances were made in medicine. The delayed fall in the death rate in many developing countries has been due mainly to their inability to afford medical facilities. In many countries, the fall in the birth rate in Stage 3 has been less rapid than the model suggests due to religious and/or political opposition to birth control, this is evident in countries like Brazil, whereas the fall was much more rapid, and came earlier, in China following the government-introduced 'one child' policy (F3).The timescale of the model, especially in several South-east Asian countries such as Hong Kong and Malaysia, is being squashed as they develop at a much faster rate than did the early industrialised countries, therefore making the time scale, and consequently the utility of the DTM obsolete.Figure 3Countries that grew as a consequence of emigration from Europe (USA, Canada, and Australia) did not pass through the early stages of the model which would also add to the idea that the DTM cannot be used as a general tool for all countries.Still another factor can skew the numbers in a demographic transition or render it meaningless, which is lethal disease. In some countries today, AIDS rages out of control, with more than 40 million people afflicted globally. In 2001 alone, an additional five million people were diagnosed with AIDS. In future other factors may enter the picture such as groundwater depletion and global water shortage. In Bangladesh today, due to arsenic poisoning of the ground water in thousands of rural tube wells, millions of villagers are falling sick and dying as this silent killer reaches epidemic proportions.In conclusion, the only way demographers could use the DTM would be in population projections or as a descriptive model. Population projections represent simply the playing out into the future of a set of assumptions about future fertility, mortality, and migration rates. It cannot be stated too strongly that such projections are not predictions, though they are misinterpreted as such frequently. A projection is a "what-if" exercise based on explicit assumptions that may or may not themselves be correct. If the assumptions represent believable future trends, then the projection's outputs may be plausible and useful. If the assumptions are unbelievable, then so is the projection.As the course of demographic trends is hard to anticipate very far into the future, demographers should calculate a set of alternative projections that, taken together, are expected to define a range of plausible futures, rather than to predict or forecast any single future from the model. Because demographic trends sometimes change in unexpected ways, it is important that all demographic projections be updated on a regular basis to incorporate new trends and newly developed data, and therefore should not rely on one model.
What percentage of people born 1915 are alive today?
As of 2021, there are almost no people born in 1915 alive. The remaining few would be at least 106 years old, making them an exceptionally rare demographic.
Are there still hoovervilles today?
Hoovervilles, shantytowns that emerged during the Great Depression named after President Hoover, no longer exist in the same form today. However, there are still homeless encampments and informal settlements in some cities that serve as makeshift housing for individuals experiencing homelessness. These settlements can vary in size and conditions.
What percentage of people born in the US in 1945 are still alive today?
Well, honey, let me tell you - the percentage of people born in the US in 1945 who are still kickin' is around 10-15%. Time waits for no one, not even those born in the same year as Cher and Dolly Parton. So, cherish those wrinkly legends while you can!
What is true about demographic transition?
Demographic transition refers to a shift in death rates followed by a shift in birthrates, and its associated population boom;Most developing nations are going through a demographic transition today.Demographic transition refers to a shift in death rates followed by a shift in birthrates, and its associated population boom. Most developing nations are going through a demographic transition today.
What is true about demographic?
Demographic transition refers to a shift in death rates followed by a shift in birthrates, and its associated population boom;Most developing nations are going through a demographic transition today.Demographic transition refers to a shift in death rates followed by a shift in birthrates, and its associated population boom. Most developing nations are going through a demographic transition today.
Is true about demographic transitions?
Demographic transition refers to a shift in death rates followed by a shift in birthrates, and its associated population boom;Most developing nations are going through a demographic transition today.Demographic transition refers to a shift in death rates followed by a shift in birthrates, and its associated population boom. Most developing nations are going through a demographic transition today.
What demographic transition stage is burkina faso?
Guinea-Bissau in most assumptions is in stage five of the demographic transition. As a professor in Human geography at Yale, I can prove that Guinea bissau is stage five because it refers to the transition from high birth and death rates to low birth and death rates as a country develops from a pre-industrial to an industrialized economic system. This is typically demonstrated through a demographic transition model (DTM). The theory is based on an interpretation of demographic history developed in 1929 by the American demographer Warren Thompson (1887-1973). Thompson observed changes, or transitions, in birth and death rates in industrialized societies over the previous 200 years. . The major (relative) exceptions are some poor countries, mainly in sub-Saharan Africa and some Middle Eastern countries, which are poor or affected by government policy or civil strife, notably Pakistan, Palestinian Territories, Yemen and Afghanistan. A correlation matching the demographic transition has been established; however, it is not certain whether industrialization and higher incomes lead to lower population or if lower populations lead to industrialization and higher incomes. In countries that are now developed the demographic transition began in the 18th century and continues today. In less developed countries, this demographic transition started later and is still at an earlier rate.
Demographic transition is a condition that?
Occurred in Europe and the United States in the 19th century. Is happening today in most developing nations.
Did Tom Cruise ever model?
He still models today!!
Is the planetary model of electron orbiting still used today?
yes
What year was a model 1907 anschutz made?
Model 1907 Anschutz are still being made today.
Is today a transition word?
is it
How are the principles of government developed by the Romans still important today?
Rome's laws proved a model for many of today's nations.
What years were Stevens model 59B 410 shotguns made?
The Stevens Model 59B was made by Savage Arms from 1937 until 1967. This is an excellent model and many are still in excellent working order still today.
Who was Walt Disney's role model?
his brother Roy Disney was his role model or at least that is what they believed when he died, and still today in the year 2016.
