Chinese social media users are "happier" and write "less political" messages on their profiles than Westerners, The Telegraph reported Thursday.
Computer scientists at the Delft University of Technology in Holland and the Shanghai Jiaotong University studied 46 million messages posted on Twitter and Sina Weibo.
Eighty percent of the Twitter users were US-based, while 95 percent of the Sina Weibo users were Chinese.
Seventy-nine percent of the messages posted on Sina Weibo were expressing positive sentiments, compared to 71 percent on Twitter.
When people on Sina Weibo were discussing people or locations, Sina Weibo users became even more positive - while Twitter users were more negative, the newspaper said.
Westerners tend to post messages about a narrower range of topics and tend to re-tweet information faster than Chinese users and share more links while using hash-tags, it said.