China is experimenting with a form of authoritarianism that, if successful, could close the seemingly unbridgeable gap between what its citizens demand and what it can deliver.Authoritarian governments are, by definition, unaccountable. But some towns and small cities in China are opening limited, controlled channels of public participation. For example, a program called “Mayor’s Mailboxes” allows citizens to voice demands or complaints, and rewards officials who comply.The program, one study found, significantly improved the quality of governing and citizens’ happiness with the state. No one would call these towns democratic. But it felt enough like democracy to satisfy some.