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α: calibrated so average coauthorship-adjusted count equals average raw count
This paper studies endogenous coalition formation among two North countries and two South countries. A North country is characterized by a larger market size and a lower unit cost of production compared to a South country. We identify the conditions under which two asymmetric free trade agreements (FTAs), each formed between a North country and a South country, can emerge as equilibrium. Such equilibria, previously not documented in the literature, may have practical implications.