工资与就业之间的关系并不像某些模型所暗示的那样简单。
The relationship between wages and employment is not as straightforward as some models suggest.
工具变量的美妙之处在于它们让我们以新的视角看世界。
我认为冒险和不害怕失败是很重要的。
What we need to do is to make the Chinese automotive industry competitive in the global market.
Being something and doing something that no one had done before are two different things.