you can follow the lecture powerpoint, and there are two sample paper. the paper for the replication paper is (Knittel, Christopher R., and Robert S. Pindyck. “The Simple Economics of Commodity Price Speculation.” American Economic Journal: Macroeconomics 8, no. 2 (2016): 85-110.) this project need stata modeling, thus i need the stata code. the data should be the same data as the original paper, i also need the data file and .do file. thanks.