What role for aid for trade in (deep) PTA relations? Empirical evidence from gravity model estimations – German Institute of Development and Sustainability (IDOS) https://www.idos-research.de/externe-publikationen/article/what-role-for-aid-for-trade-in-deep-pta-relations-empirical-evidence-from-gravity-model-estimations-1/
data of 29 OECD DAC countries and 144 developing countries from 2002 to 2015, we find
