In 1987, on the Constitution’s bicentennial, Time magazine calculated that “of the 170 countries that exist today, more than 160 have written charters modeled directly or indirectly on the U.S. version.”
A quarter-century later, the picture looks very different. “The U.S. Constitution appears to be losing its appeal as a model for constitutional drafters elsewhere,” according to a new study by David S. Law of Washington University in St. Louis and Mila Versteeg of the University of Virginia.
READ ON:
http://www.nytimes.com/2012/02/07/us/we-the-people-loses-appeal-with-people-around-the-world.html


and see the graphic: The U.S. Constitution: A Less Common Model

A study of constitutions in 188 countries adopted from 1946 to 2006 found that only some of the most popular rights are shared by the United States Connstitution. http://www.nytimes.com/interactive/2012/02/06/us/less-common-constitution-model.html