You will be given a definition of a task first, then some input of the task.
In this task, you're given a paragraph from the research paper and your task is to generate a suitable title for the research paper based on the given paper. Under 100 words is a good title length.

The relationship between air pollution and stock pricing of locally headquartered firms is explored using firm-level data in China. Severe air pollution results in low returns, turnover, volatility, and high illiquidity, mainly through a home bias. The results remain robust after a series of checks. The relation between air pollution and local firm performance is insignificant, implying that the air pollution effects can be attributed to investor mood bias rather than to economic effects. The sensitivity of stock returns to air pollution is significantly large for highgrowth stocks, distressed stocks, and stocks with high volatility.
Output:
Air pollution, stock returns, and trading activities in China