If country A has a free trade agreement with country B, and country B has a free trade agreement with country C, does that mean country A effectively has a free trade agreement with country C?
If the answer is “it depends what you mean by free trade”, what characteristics of the A-to-B agreement would be be conducive to it being “transitive” with the B-to-C agreement?
If A-to-B and B-to-C were perfectly “compatible” in this sense, could A ship goods directly to C or would they still have to go via B?