to bring people on in short-term contract work.
关于雇佣短期合同工。
You can prove that, in fact, if you were writing a contract, if there was a social planner you'd work more.
事实上你会发现,如果有书面合同,或者有个规划师的话人们会超常发挥
Why wouldn't writing a contract here work?
为什么他们不能签这样的合同
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