Replication data for: The Changing Incidence of Geography

The incidence of bilateral trade costs is calculated here using neglected properties of the structural gravity model, disaggregated by commodity and region, and re-aggregated into forms useful for economic geography. For Canada's provinces, 1992-2003, sellers' incidence is on average some five times higher than buyers' incidence. Sellers' incidence falls over time due to specialization, despite constant gravity coefficients. This previously unrecognized globalizing force drives big reductions in "constructed home bias," the disproportionate predicted share of local trade; and large but varying gains in real GDP. (JEL F11, F14, R12)

本文采用结构引力模型（structural gravity model）中被既往研究忽视的特性，测算双边贸易成本负担：该测算按商品品类与地区维度进行细分，并重新聚合为经济地理学研究可用的分析形式。针对1992至2003年加拿大各省份的样本，卖方贸易成本负担平均约为买方的五倍。尽管引力模型系数保持恒定，但卖方贸易成本负担随时间推移因专业化分工而下降。这一此前未被学界认知的全球化驱动因素，大幅降低了"构建的本土偏向（constructed home bias）"——即模型预测的本地贸易占比偏高的情况——同时为实际GDP带来了规模可观但存在差异的增长收益。(JEL F11, F14, R12)