Hello everyone,
I want to create the Herfindahl-Hirschman Index for my data. I have quartlery data for different banks. I want to have the HHI for market share.
I tried the command
hhi marketshare, by(bank_id, date) however it only gives me 1 for every observation. Leaving out the date gives me results, however I want the date included.
(same with the hhi5 command). When I try the entropyetc command it says matsize too small (even after I increased the matsize)
Does anyone have a suggestion?
Thank you in advance
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