Exiting the middle-income trap entails costly improvements in state capacity. That deep economic integration induces powerful actors to support increasing state capacities remain underresearched. Here we ask: Under what conditions can deep economic integration yield increases in state capacity?...

"For United States annual data that include World War II, the estimated multiplier for temporary defense spending is 0.4–0.5 contemporaneously and 0.6-0.7 over 2 years. If the change in defense spending is "permanent" (gauged by Ramey's defense-news variable), the multipliers are higher by...