Dictators lie about economic growth, por Henry Farrel (Monkey Cage - The Washington Post):
There’s a lot of recent scholarship suggesting that non-democratic regimes grow faster than democratic regimes. This has led some people not only to admire the Chinese model of growth focused authoritarianism, but to suggest that it may be a better economic model for developing countries than democracy. However, this research tends to assume that both democracies and non-democracies are telling the truth about their growth rates, when they report them to multilateral organizations such as the World Bank. Is this assumption safe? The answer is no, according to a forthcoming article (temporarily ungated) by Christopher S. P. Magee and John A. Doces in International Studies Quarterly. (...)
This means that researchers need to find some kind of independent indicator of economic growth, which governments will either be less inclined or unable to manipulate. Magee and Doces argue that one such indicator is satellite images of nighttime lights. As the economy grows, you may expect to see more lights at night (e.g. as cities expand etc). And indeed, research suggests that there’s a very strong correlation between economic growth and nighttime lights, meaning that the latter is a good indicator of the former. Furthermore, it’s an indicator that is unlikely to be manipulated by governments.
Magee and Doces look at the relationship between reported growth and nights at light and find a very clear pattern. The graph below shows this relationship for different countries – autocracies are the big red dots. Most of the dots are above the regression line, which means that most autocracies report higher growth levels to the World Bank than you’d expect given the intensity of lights at night. This suggests that they’re exaggerating their growth numbers.
http://www.washingtonpost.com/blogs/monkey-cage/wp/2014/06/26/dictators-lie-about-economic-growth/
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