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- Wed Jul 23, 2014 9:50 am
- Forum: Estimation
- Topic: Near singular matrix
- Replies: 1
- Views: 2354
Near singular matrix
Hi there, I was trying to run a few regressions and wanted to control for industry and time-effects using dummy variables. I managed to solve the issue for time effects using dummy variables, however i'm struggling to control the industry effects. I've attached my excel file. The problem lies with t...