This paper studies the potential effects of geoeconomic fragmentation (GEF) in the sub-Saharan Africa region (SSA) through quantifying potential long-term economic costs. The paper considers two alternative GEF scenarios in which trade relations are fully or partially curtailed across world...

In most macroeconomic models, the substitutability between domestic and foreign goods is calibrated using aggregated data. This imposes homogeneous elasticities across goods, and the calibration is only valid under this assumption. If elasticities are heterogeneous, the aggregate...

Do political regimes determine how geopolitics influence international trade? This paper provides an empirical answer to the question by analyzing the joint impact of democracy and geopolitical distance between countries with an augmented gravity model of bilateral trade flows and an extensive...

In 2008, Madagascar reformed its domestic tax system. Because the excise duties and VAT regimes were reformed, the taxation of imports has changed. This paper quantifies how the reform changes the protection against imports and the fiscal revenues from taxation of imports. It shows that, even if...