Iraqi democracy will succeed -- and that success will send forth the news, from Damascus to Teheran -- that freedom can be the future of every nation. The establishment of a free Iraq at the heart of the Middle East will be a watershed event in the global democratic revolution.Peter Leeson and Andrea Dean refer to the idea that establishing a democratic government in one country increases the probability of neighboring countries adopting more democratic institutions as the democratic domino theory. They attempted to measure the size of the domino effect in "The Democratic Domino Theory: An Empirical Investigation." The abstract of the paper reads
According to the democratic domino theory, increases or decreases in democracy in one country spread and “infect” neighboring countries, increasing or decreasing their democracy in turn. Using spatial econometrics and panel data that cover over 130 countries between 1850 and 2000, this article empirically investigates the democratic domino theory. We find that democratic dominoes do in fact fall as the theory contends. However, these dominoes fall significantly “lighter” than the importance of this model suggests. Countries “catch” only about 11% of the increases or decreases in their average geographic neighbors’ increases or decreases in democracy. This finding has potentially important foreign policy implications. The “lightness” with which democratic dominoes fall suggests that even if foreign military intervention aimed at promoting democracy in undemocratic countries succeeds in democratizing these nations, intervention is likely to have only a small effect on democracy in their broader regions.Like beauty, the "lightness" impact is in the eye of the beholder. If we are successful at establishing more democratic institutions in Iraq and Afghanistan, is an 11% increase in surrounding countries significant?
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