Hello!
I am analysing USA states panel data from 2000Q1-2023Q2, using panel ARDL (PMG/MG/DFE) I want to group the states into 8 regions defined by BEA and analyse the results. Stata doesn´t allow multiple same time variables in same group Lets say 1 group has 6 states, meaning 6 observations per one quarter, leading to duplicates in time variable. Using xtset gives error "repeated time values within panel". Should I take average across all the states across one group and how would it look like using a code in Stata?
I am analysing USA states panel data from 2000Q1-2023Q2, using panel ARDL (PMG/MG/DFE) I want to group the states into 8 regions defined by BEA and analyse the results. Stata doesn´t allow multiple same time variables in same group Lets say 1 group has 6 states, meaning 6 observations per one quarter, leading to duplicates in time variable. Using xtset gives error "repeated time values within panel". Should I take average across all the states across one group and how would it look like using a code in Stata?
Code:
1 Massachussets 1/1/1991 | 2. | 1 New Hampshire 1/1/1991 | 3. | 1 Connecticut 1/1/1991 | 4. | 1 Vermont 1/1/1991 | 5. | 1 Rhode Island 1/1/1991 | |--------------------------------| 6. | 1 Maine 1/1/1991 | 7. | 1 Vermont 4/1/1991 | 8. | 1 Massachussets 4/1/1991 | 9. | 1 Maine 4/1/1991 | 10. | 1 Connecticut 4/1/1991 | |--------------------------------| 11. | 1 New Hampshire 4/1/1991 | 12. | 1 Rhode Island 4/1/1991