张凯瑞’s Economics × Data × AI Portfolio

Field notes

The portfolio divides its work into a data product, a research model, and an empirical paper, making the intended progression from evidence to action unusually explicit. Its examples include 210 industrial subject profiles and 12 proposed actions, a drone-delivery model using road and ERA5 weather data across three cities, and a policy study covering 51,171 A-share company-year observations. The homepage describes methods and results, but the underlying datasets and full project artifacts are not exposed in the extract.