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The arrival of driverless cars could help us reduce light pollution

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During the period known as the High Middle Ages, between 1100-1250, the Catholic Church built over 1400 Gothic churches in the Paris Basin alone. […]

This thesis examines the implicit costs of building the Gothic churches of the Paris Basin built between 1100-1250, and attempts to estimate the percentage of the regional economy that was devoted to build them.

I estimate that over this 150-year period, on average, 21.5 percent of the regional economy was devoted to the construction of these Gothic churches, 1.5 percent of which is directly related to the implicit cost of labor.

{ Amy Denning | PDF }





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