Trade and financial integration in East Asia: Effects on co-movements

In this paper we explore three important areas where deeper trade and financial integration in East Asia can influence: (1) business cycle co-movements in the region, (2) the extent of risk sharing across countries and (3) price co-movements across countries. We find evidence that trade integration enhances co-movements of output but not of consumption across countries. Especially the fact that trade integration does not raise co-movements of consumption as much as that of output is interpreted as trade integration does not improve the extent of risk sharing. Co-movements of price arise most significantly as trade integration deepens, lowering the border effects and allowing better opportunities for resource reallocation across countries. In contrast, financial integration demonstrates much weaker evidence of enhancing co-movements across countries. Deeper financial integration improves price co-movements weakly but does not enhance output or consumption co-movements at all. However, since the current level of financial integration in East Asia is quite low, our evidence is too early to firmly determine the role of financial integration.