Does international trade promote economic growth? Europe, 19th and 20th centuries

In this paper, we analyse the relationship between international trade and economic growth in an unbalanced panel of 20 European countries in a long-term perspective, since the mid-19th century to present days, differentiating between the periods before and after the start of the Second World War. To this end, we perform Granger-causality tests between exports and GDP, and between imports and GDP, following the novel methodology of Juodis et al. (2021) for panel data models with large cross-sectional and time series dimensions. Our results support the existence of a bi-directional relationship between both trade variables and GDP, for the whole period and across subperiods.