It is widely believed that globalization has proceeded to the point where international economic linkages are as strong as those within nations. Struck by research suggesting that this perception is dramatically mistaken, John Helliwell spent three years assessing the evidence. The results are reported in this book, the latest in Brookings'' Integrating National Economies series. It provides the most systematic measurements yet available of the relative importance of global and national economic ties.
The original finding, based on a gravity model of trade flows, was that 1988 trade linkages between Canadian provinces were twenty times as dense as those between Canadian provinces and U.S. states of similar size and distance. A much longer and more detailed body of data is used to expand and explain these findings. Data for trade within and among OECD and some developing countries are used to show that the Canadian-U.S. results are applicable to other countries. Helliwell
