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Nov 5, 2012

Hurricane Sandy: why good government, not luck, saves lives

The loss of life is tragic and the economic impact enormous, but places like New York are much better able to deal with natural disasters than most of the world's population. And

Alan Davies — Editor of The Urbanist

Alan Davies

Editor of The Urbanist

The loss of life is tragic and the economic impact enormous, but places like New York are much better able to deal with natural disasters than most of the world’s population. And it’s got little to do with luck.

So far there are a confirmed 182 deaths from hurricane Sandy. All deaths are tragic, but given New York City’s population is around 8 million it’s a welcome relief that so far only 48 New Yorkers died as a direct result of Sandy. This is largely the result of good government, good institutions and a high standard of living. Harvard economist Ed Glaeser argues that Sandy highlights the importance and value of good government:

“Death tolls from comparable natural disasters are substantially lower in countries with more capable governments. In 2010, massive earthquakes hit both Chile and Haiti. In competent Chile, deaths numbered in the hundreds, while in chronically mismanaged Haiti, tens of thousands died.”

His numbers are conservative. An estimated 300,000 people died in Haiti compared to 550 in Chile in the following month, even though the Chilean earthquake was an order of magnitude more powerful — 7.0 verses 8.8 on the (logarithmic) richter scale.

Glaeser cites an important paper published in 2005 by Matthew Kahn from UCLA, The death toll from natural disasters: the role of income, geography and institutions. Kahn begins his paper by comparing the second and third most populous countries in the world:

“Between 1980 and 2002, India experienced 14 major earthquakes that killed a total of 32,117 people while the United States experienced 18 major earthquakes that killed only 143 people.”

His key message is that “economic development provides implicit insurance” against disasters. Nations that are democratic and have “higher-quality institutions suffer less death from natural disasters”.

Predicted annual deaths from disasters by GDP (hypothetical nation with population set at 100 million and year at 1990) Source: Kahn, 2005

Kahn analysed a data set of annual deaths from disasters in 73 countries between 1980 and 2002. The data records more than 4000 disaster events that resulted in the deaths of over 800,000 people.

He sought to discover how the relative number of deaths from earthquakes, floods, windstorms, extreme temperature events, landslides and industrial disasters (like Bhopal) depend on a country’s geography, income and institutions. He found geography makes a difference. For example, African nations and those closer to the equator suffer fewer disaster events and fewer disaster-related deaths than Asian nations. Deaths are inversely related to elevation (fewer windstorms) but increase with distance from the equator (more earthquakes).

But wealth makes a bigger difference. While the income of a nation has little to do with the number of natural disasters it experiences, richer nations suffer many fewer deaths:

“If a nation with a population of 100 million experienced a GDP per capita increase from $2000 to $14,000, that nation would suffer 764 fewer natural-disaster deaths a year.”

There’s a host of possible reasons for this. Richer countries “can provide implicit disaster insurance through effective regulation and planning and by providing quality infrastructure”. For example, they have higher quality emergency services and better immediate and long-term health care. They have better early warning systems and more durable buildings.

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