- global book1_L "Dev1_b State_Dev1_b Size_Dev1_b MB_Dev1_b top1_Dev1_b LDev_Dev1_b"
- global book1_D "Dev1_b d_state_Dev1_b Size_Dev1_b MB_Dev1_b top1_Dev1_b LDev_Dev1_b"
- global book2_L "Dev2_b State_Dev2_b Size_Dev2_b MB_Dev2_b top1_Dev2_b LDev_Dev2_b"
- global book2_D "Dev2_b d_state_Dev2_b Size_Dev2_b MB_Dev2_b top1_Dev2_b LDev_Dev2_b"
- global book3_L "Dev3_b State_Dev3_b Size_Dev3_b MB_Dev3_b top1_Dev3_b LDev_Dev3_b"
- global book4_D "Dev3_b d_state_Dev3_b Size_Dev3_b MB_Dev3_b top1_Dev3_b LDev_Dev3_b"
- xi: reg delta_lev $book1_L i.year,vce(bootstrap)
- est store OLS_book1_L
- xi: xtreg delta_lev $book1_L i.year,fe vce(bootstrap)
- est store FE_book1_L
- xi: reg delta_lev $book1_D i.year, vce(bootstrap)
- est store OLS_book1_D
- xi: xtreg delta_lev $book1_D i.year,fe vce(bootstrap)
- est store FE_book1_D