面试题目
1st round 和 design AB test
第二个问题我选了 diff-in-diff（还可以选 observational study, optimal stopping, one more AB test），问了：
- explain the concept of diff-in-diff
- how do you use a diff-in-diff to estimate a national level policy shock
- how do you do placebo test
- how do you cluster standard error?
- what’s the level. —
- 2nd round:
- Talk about my research.
- No clear guideline?
- Culture memo?
- Why Netflix?
行为面试
很基础的问题，包括 work with non tech audience，deal with conflict 等。
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