life - Shanghai is a happy place

Reports the Shanghai Daily, so we should follow this news with some suspicion.

Eighty-five percent of Shanghai locals feel happy with the city, while only half of Guangzhou citizens like their city. Seventy-nine percent of Beijing citizens are satisfied with the capital city of China.

The story says they are at least happier than citizens in Beijing and Guangzhou, so might might dampen too much enthusiasm about so much happiness at bit: happiness is a very relative thing.
My experience with the different ways how Westerners and Chinese describe happiness (if such a gross generalization is allowed) is that Chinese tend to expect the worse. The Christian culture tells us we will all go to heaven and become happy (although heaven has often been replace with a new house or car), we tend to get very frustrated when our expectation do not become true.
Expectation in China are not that high, actually, many Chinese do not expect that things will continue to be as good as they are. Since they expect the worse, they are not frustrated when the worse happens. When the worst does not happen, they are even happy.
In general: measuring happiness is a tricky thing when it crosses cultures.