Interlinking payment systems boosts international trade by 4 percent

A new European Central Bank working paper provides the first causal estimate of the economic impact of interlinking payment systems, finding a 4 percent increase in trade volumes for connected countries. The study utilizes a new dataset of over 2,000 connections and employs standard gravity methods to establish its causal findings.

The 4 percent trade dividend

The paper presents the first causal estimate of the economic impact of interlinking payment systems across countries, revealing a significant boost to international trade.

Countries with interconnected payment systems experience approximately 4 percent higher trade volumes compared to non-linked nations.

This effect is economically meaningful, representing roughly half the impact of a formal trade agreement and about a quarter of the trade increase associated with a common currency area.

The research leverages a novel dataset identifying over 2,000 payment system connections globally and applies standard gravity methods to isolate the average effect on trade, net of existing correspondent banking networks.

The findings are robust to various controls and statistical methods, including the exclusion of the euro area.

Targeted benefits for smaller economies

The study highlights that the positive impact of interlinking payment systems is particularly pronounced in specific contexts.

Benefits are larger for payment systems that facilitate wholesale transactions and for those linking smaller countries, which often have less developed connections to the correspondent banking network.

Furthermore, geographical areas facing high cross-border payment costs derive greater advantages from interlinking.

These findings strongly suggest that the economic gains from interconnected payment systems stem primarily from a reduction in cross-border trade costs, thereby improving efficiency and accessibility, especially in regions with less developed financial infrastructures.

This aligns with the G20 roadmap for enhancing cross-border payments.

Beyond plumbing: A strategic asset

This research finally quantifies a long-assumed benefit, providing concrete, causal evidence for policymakers on the economic value of payment system interlinking.

While the 4 percent effect is modest compared to a common currency, its targeted impact on high-cost regions and smaller economies highlights its strategic importance for inclusive growth.

The findings underscore the need for continued investment in cross-border payment infrastructure as a critical tool for global economic integration and resilience.