Trade policy commitments to lower import tariffs and to maintain tariffs at low levels entail short and long-run political-economic costs and benefits. Empirical work examining the relationship between such commitments and the exercise of trade policy flexibilities is still relatively nascent,...

In a three-country model of endogenous trade agreements, we study the implications of the Most Favored Nation Clause (MFN) when countries are free to form discriminatory preferential trade agreements (PTAs). While PTA members discriminate against non-member countries, MFN requires non-members to...