Zsolt Tibor Kosztyán

Is the World Getting Smaller? Network‐Driven Heterogeneity in Gravity‐Model Elasticities

Gravity models constitute the workhorse of empirical international trade research, yet the temporal stability of their core parameters—distance and GDP elasticities—remains underexplored, particularly in relation to the evolving structure of trade networks. This study investigates the bidirectional Granger‐causal rel...