Amazon Economist I interview questions

I had an interview with amazon for the position of PhD-level economist at the AEA meetings. The interview lasts 2 hours and consists of 4 30-min interviews. Two of these interviews are behavior conducted by 2 non-economists; the other two are technical conducted by one senior and one junior economist. The technical interviews were mostly about knowing econometrics and reduced form estimation (OLS, 2SLS, Diff-in-Diff, Propensity Score Matching). You should be prepared to answer questions such as: How are you going to estimate the willingness to pay for faster shipping speed? How will you estimate the price elasticity of demand for product X?