Hi Everybody,

Someone can help me ? I have run the regression as a fixed effects model xtreg GDP Inflation_Rate Inflation_Rate2 Inflation_Rate3 if Inflation_Rate2>=0 & Inflation_Rate3<0, fe
knowing that Inflation_Rate=Inflation_Rate2=Inflation_Rate3, then I get a message: insufficient observations. For example :
Period GDP Inflation Rate Inflation Rate2 Inflation Rate3
January 2020 1 -1 -1 -1
February 2020 1 -1 -1 -1
mars-20 1 -1 -1 -1
April 2020 1 2 2 2
May 2020 1 2 2 2
June 2020 2 2 2 2
July 2020 2 1 1 1
August 2020 2 1 1 1
September 2020 2 1 1 1

Any idea on how I could do this ?

Many Thanks !