This passage introduces of population pressure - the greatest feature of modern malthusian theory, of economics of population.

本文介绍了现代马尔萨斯主义人口经济理论的最大特点—人口压力。

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People are fleeing the cold: there is a strong correlation between the average temperature in January and population growth, notes Edward Glaeser, a professor of economics at Harvard University.

哈佛大学经济学教授爱德华格雷泽指出，人们趋暖避寒：1月均温与人口增长有着密切的相互关系。

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The problem of population and economy is one of the long term problems noticed by human society and is the most important research contents of population economics.

人口与经济问题是人类社会长期关注的问题之一，也是人口经济学最重要的研究内容。

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Two hundred years ago one of the pioneers of modern economics, Thomas Malthus, was warning that population was growing faster than food production and the only remedy, if you are willing to accept a lot of dead people as a remedy, would be that population would eventually be held in check by famine.

FORBES: Commodity Prices: Why Technology and the Price Mechanism will Prove the Scarcity Pessimists Wrong

People are fleeing the cold: there is a strong correlation between the average temperature in January and population growth, notes Edward Glaeser, a professor of economics at Harvard University.

ECONOMIST: The census

In a report for the Campaign to Protect Rural England, Andrew Lilico of Europe Economics argues that the housing crisis is a myth stemming from population overestimates in 2000.

ECONOMIST: Concrete is coming to a building site near you