Integration Among Asia‐Pacific and International Stock Markets: Common Stochastic Trends and Regime Shifts

Are stock markets in the Asia‐Pacific region integrated with each other and with the US and Japan? The paper examines a number of common stochastic trends among stock prices in the US, Japan, Hong Kong, Korea, Singapore, Taiwan and Thailand. If integration exists it is a fairly recent phenomenon. Institutional and economic considerations suggest the same is true so that a single common stochastic trend among Asian and North American markets is a recent phenomenon. The reason is that the stock markets studied were only recently sufficiently liberalized to permit some form of integration to emerge. Also, not only was the 1987 stock market crash significant, but the 1991 Gulf War also signalled a turning point in the degree of stock market integration among the countries studied.