1model,term,coef,se,ci_lo,ci_hi,p,n,llf,r22H1-M1 within-country: log pop ~ K + log gdppc + polyarchy + year FE,K_modern_dm,0.1480460995463701,0.062061798411447426,0.026404974659933148,0.26968722443280707,0.017057656297418396,14647,-5466.940073997608,0.64567637159068373H1-M2 pooled: log pop ~ K + log gdppc + polyarchy + year FE + region FE,K_modern,0.18802867300196574,0.24031350503956758,-0.2829857968755867,0.6590431428795183,0.43396147546105157,14647,-26282.825236966386,0.228304312614100454H1-M3 50-year differences: Δlog pop ~ ΔK + Δlog gdppc + Δpolyarchy + year FE,dK_modern,0.1347086795306403,0.05271145178142616,0.03139423403904504,0.23802312502223558,0.010600898059413784,6836,-4135.136061411962,0.169846041629692975