Dynamic Gravity Dataset (DGD)

The gravity data describes country characteristics and relationships between two trading partners. This data covers the period between 1948 and 2019 and contains variables describing macroeconomic indicators, geographic characteristics, trade facilitation measures, cultural relationships, and institutional stability measures. In order to accurately reflect the dynamic nature of the globe, the dataset follows the formation and dissolution of countries each year and features extensive time variation in corresponding variables.贸易引力数据集（gravity data）用于刻画国家自身特征以及双边贸易伙伴间的双边关系。该数据集覆盖1948年至2019年的时间跨度，包含用以描述宏观经济指标、地理特征、贸易便利化措施、文化关联以及制度稳定性测度的多类变量。为精准反映全球动态演化特征，该数据集每年追踪各国的成立与解体情况，且对应变量具备丰富的时序变异性。