منابع مشابه
Are Children "Normal"?
We examine Becker's (1960) contention that children are "normal." For the cross section of non-Hispanic white married couples in the U.S., we show that when we restrict comparisons to similarly-educated women living in similarly-expensive locations, completed fertility is positively correlated with the husband's income. The empirical evidence is consistent with children being "normal." In an ef...
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The paper by Weerasinghe and Parr resurrects a longstanding debate over the causal role of wealth in fertility reductions of the past centuries (1). Malthus, who did not foresee any negative correlation between wealth and fertility, wrote, “That population does invariably increase where there are the means of subsistence, the history of every people that have ever existed will abundantly prove”...
متن کاملNormal Numbers Are Normal
A number is normal in base b if every sequence of k symbols in the letters 0, 1, . . . , b− 1 occurs in the base-b expansion of the given number with the expected frequency b−k. From an informal point of view, we can think of numbers normal in base 2 as those produced by flipping a fair coin, recording 1 for heads and 0 for tails. Normal numbers are those which are normal in every base. In this...
متن کاملWhy are Normal Distributions Normal?
We seem to be surrounded by bell curves—curves more formally known as normal distributions, or Gaussian distributions. All manner of things appear to be distributed normally: people’s heights, sizes of snowflakes, errors in measurements, lifetimes of lightbulbs, IQ scores, weights of loaves of bread, and so on. I argue that the standard explanation for why such quantities are normally distribut...
متن کاملAre Children Less Susceptible To COVID-19? A Case Series
Background The novel coronavirus (SARS-CoV-2 [2019-nCoV]) is the origin of several cases of pneumonia in Wuhan, Hubei province, China. According to the reported data, children are less common to be infected by COVID-19. Besides, their mortality rate is almost zero. Case Presentation In this article, we investigated six childr...
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ژورنال
عنوان ژورنال: Review of Economics and Statistics
سال: 2013
ISSN: 0034-6535,1530-9142
DOI: 10.1162/rest_a_00257