population policy
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Estimating the probability that the true population mean lies within a range around a sample mean.
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The debate between contagionists and anticontagionists over the transmission of infectious diseases played a major role in nineteenth-century medical discourse. On the one side were those who believed that diseases could be spread by infected material, perhaps including people and inanimate objects, and on the other those who subscribed to the more venerable miasmatic theory. Although the contagionist view would be substantially vindicated...more
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Early Modern England: Politics, Religion, and Society under the Tudors and Stuarts (HIST 251) Professor Wrightson reviews the events leading up to the outbreak of the English civil wars and assesses the various historiographical interpretations that have been advanced to explain the war. He notes that while it is essential to appreciate the various long-term causes of the conflict, we must also recognize the role of contingency in the per...more
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This lecture focuses on the process of emancipation after the passage of the Emancipation Proclamation on January 1, 1863. The Proclamation, Professor Blight suggests, had four immediate effects: it made the Union army an army of emancipation; it encouraged slaves to strike against slavery; it committed the US to a policy of emancipation in the eyes of Europe; and it allowed African Americans to enlist in the Union Army. In the end, ten pe...more
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By 1950, in most of the underdeveloped world, mortality had fallen to about half its pre-modern rate. The birth rate, however, had remained high and, by 1950, was about twice the death rate. For the rest of the century, both rates fell dramatically and in parallel, maintaining the gap. The enormous excess of births over deaths in this period is known as 'the population explosion.' By 1990, the world population was growing at almost 90 mill...more
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Prior to the Demographic Transition, fertility in northwestern Europe was controlled by limiting marriage. Marriage was regulated by landowners and the churches, and was not allowed unless a man had accumulated the resources necessary to support a family. Long periods of being landless, a servant, or an apprentice, precluded marriage. Once married, there was no control of fertility. But, only about half of adults were married at any given ...more
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Prior to Malthus, population growth was seen as good for the power and wealth of a country. The rapid population growth of America was crucial in expelling England (via the Revolution) and France (via the Louisiana Purchase) from the US. But in fact, the numbers of the poor were growing in Europe in the 1700s. Malthus argued that poverty was due to an imbalance between people and resources; since population could rise very fast, it could a...more
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European populations grew only slowly during the period 1200-1700; factors include disease and wars. Human feces and rotting animal remains were not sequestered and often contaminated drinking water. Cities were so filthy that more people died in them than were born. About a third of children died in infancy, many from abandonment and lack of care during wet-nursing. Children that survived were subjected to harsh discipline to control thei...more
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In this lecture, we use the overlapping generations model from the previous class to see, mathematically, how demographic changes can influence interest rates and asset prices. We evaluate Tobin's statement that a perpetually growing population could solve the Social Security problem, and resolve, in a surprising way, a classical argument about the link between birth rates and the level of the stock market. Lastly, we finish by laying some...more
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The transparent tissues of the eye allow light to reach the retina. This highly metabolic tissue requires oxygen delivered by the blood vessels, which are damaged by disease. Diabetic retinopathy is the commonest cause of blindness in the working-age population and in later life hypertension adds to this toll. The eyes maybe the mirror of the soul, but they certainly are a window into our general health. This lecture traces the story f...more
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Perry illuminates the common thread of leadership styles and ethical responsibilities in an industry and a government organization. He also observes that practices across the industry and the government bring insights about special techniques and social responsibilities that one can apply in both kinds of organizations.
