Make Trade, Not War: How Capitalism Creates Peace: Open markets lead to closed battlefields. (Walker Wright, 5/15/26, Human Progress)

While the liberal peace theory remains influential, a growing wave of empirical research over the last three decades suggests that markets may play a bigger role than the ballot box. This shift in consensus toward what’s known as the capitalist peace theory posits that trade openness and economic interdependence are among the primary forces that mitigate war. Of course, scholars continue to debate over how much trade and economic freedom contribute to peace. But liberal peace theorists now include economic interdependence as an essential element within the broader liberal peace project. Economic interdependence is “part of the glue that cements the ‘liberal peace’ together.”

More Reagan/Bush, less Trump/Biden.