Alex Massie Alex Massie

Regression to the Mean

Via Art Goldhammer, a new paper examining trends in public disorder across europe from 1919 to our own blessed unhappy time. Here’s the chart:

The authors explain their methodology: “We look at five different types of instability – anti-government demonstrations, riots, assassinations, general strikes, and attempted revolutions – in Europe over the period 1919-2009. The data comes from a large-scale international data collection (Banks 1994), and is based on an analysis of reporting in the New York Times. The individual indicators are then aggregated by summing them up for each country and year. This gives the variable called CHAOS. Figure 1 shows how it evolved over time since 1919, presenting the mean and the maximum. The interwar years show a high level of unrest, as does the immediate post-World War II era, and the period from 1970 to the early 1990s.”

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