This volume undertakes the important task of envisioning a regional history of Asia based on its unique internal characteristics, going beyond the usual West/non-West dichotomy. The "regional trade zone of modern Asia" was debated in the 1980s. Since then, Japanese historians of the socioeconomic history of Asia have explored how the traditional trade relations that had developed over the centuries in Asia responded to the so-called Western impacts in the mid-nineteenth century, including the opening of ports and tariff reduction under free trade regimes and the advance in transportation technology.