Реферат: Thomas Malthus
Название: Thomas Malthus Раздел: Топики по английскому языку Тип: реферат |
’ Theory On Population Essay, Research Paper Thomas Malthus?s studies on the growth of population led to the development of the field of demography. According to Malthus, population tends to increase faster than the supply of food available for its needs. Whenever a relative gain occurs in food production over population growth, a higher rate of population increase is stimulated; on the other hand if population grows too much relative to food production, the growth is checked by famine, disease, and war. Malthus?s theory contradicted the optimistic belief prevailing in the early 19th century, that a society?s fertility would lead to economic progress. He advocated sexual abstinence or restraint to control population increases and acknowledged the role of the plagues, wars, and epidemics in containing overpopulation. Malthus specifically suggested that people marry later and have smaller families. Due to these ideas, economics earned its name as ?The Dismal Science?. But it won considerable support and was often used as an argument against efforts to better the condition of the poor. KEY POINTS TO REMEMBER Over Population :There is too great a population to support with the actual or potential resources available. Under Population:There is too small a population to support with the actual or potential resources available. Optimum Population :The population is the right size to efficiently exploit all of the available resources. Preventative Checks :This is what Malthus believed to be the move towards later marriages, which in turn would lead to fewer children and therefore lower the birth rate. Positive Checks :Things which would have an effect of increasing the death rate i.e. famine, war, disease, infanticide. Carrying capacity :This is the largest population that the environment of a particular area can carry or support. ???????????????????????????????????????????? ???? ????????????????????????????????????? ? ??????????????????????????????? Was Malthus relevant in Britain?In the Nineteenth century Britain had a very high population growth rate. This was mainly due to a high birth rate and a decreasing death rate, (Demographic Transition Model stage 2).But Britain did not reach its carrying capacity because of the industrial revolution, increased agricultural output, better transport = more trade, and better storage and refrigeration meant that food could be kept for longer.Is Malthus relevant today? Malthus?s theory is being taken more seriously because he has described the situation that has been and is occurring in many of the poorer countries. n example is Bangladesh, it has had many natural disasters including floods and hurricanes? and is having trouble feeding it?s population. Other countries seen to be experiencing positive checks are Ethiopia, Somalia, Mali, etc. These countries all have high birth rates and low food production.??????????????????????????????????????????? ??????????????????????????????????????????????? |