Many incentives that economists study are more straightforward than those of the auto-safety laws.
经济学家研究的许多激励要比汽车安全法的激励更为直接。
2
In addition to pollution and traffic jams, autosafety is a critical issue in developing nations.
除了污染和交通堵塞，汽车安全也是发展中国家面临的一个关键问题。
3
Yet, autosafety is actually a complicated phenomenon, and if you examine the trends, the most striking thing is how much safer the roadways are than they used to be.