GUNS vs BUTTER: does a fall in military %GDP go with a RISE in education %GDP? (within-country)
N=5256, 203 countries, 1970-2024

[Two-way FE] education ~ military: b=0.0718 (se 0.0256, p=0.00505)
   (negative b => when military share falls, education share rises = reallocation/peace dividend)
[First differences] d_education ~ d_military: b=0.1053 (p=0.000472)