APA
Kogan L., National Bureau of Economic Research, Li J. & Zhang H. (2022). Operating hedge and gross profitability premium. Cambridge: NBER.
Chicago
Kogan Leonid, National Bureau of Economic Research, Li Jun and Zhang Harold. 2022. Operating hedge and gross profitability premium. Cambridge: NBER.
Harvard
Kogan L., National Bureau of Economic Research, Li J. and Zhang H. (2022). Operating hedge and gross profitability premium. Cambridge: NBER.
MLA
Kogan Leonid, National Bureau of Economic Research, Li Jun and Zhang Harold. Operating hedge and gross profitability premium. Cambridge: NBER. 2022.