The “Butterfly Effect” of Volatility in Net International Capital Flows: An Analysis of Co-Movement Characteristics and Influencing Factors

This paper employs social network analysis to investigate the characteristics and determinants of co-movement in the volatility of net cross-border capital flows. We have identified a significant “small-world” pattern in the co-movement network. Economies with highly positive or negative co-movement of volatility in net capital flows display regional differences. Furthermore, economies with high trade intensity, large interest-rate spreads, membership in the same economic organization, and geographical adjacency exhibit significantly increased co-movement of volatility in net private capital flows and net other investment flows. Economies with large differences in economic growth present less co-movement of volatility in net portfolio flows.