Political theorists don't agree on much, but they tend toward a healthy majority on one issue: large, vibrant middle classes spur demands for greater democracy and help sustain democratic institutions.
In recent history, countries that have successfully transitioned to democratic pluralism tend to be those with strong middle classes. South Korea, Taiwan, Japan, Mexico and Chile all moved toward greater democracy after developing their economies and building middle classes. The Eastern European states that have shown the healthiest democratic… more