Korea's decision to delay joining the Trans-Pacific Partnership (TPP) talks was a tactical mistake. It is now left with primarily two options to participate: (1) ask to join the TPP, if possible between signature and entry into force, or (2) accede to the TPP after the agreement is ratified and goes into effect—either alone or as part of a group of countries seeking TPP membership. For Korea the burden of adjustment in the TPP—in terms of liberalization commitments—will probably be higher than had it joined as an original signatory. As a major trading nation, it stands to reap large gains from increased trade and investment with TPP countries and should opt to join the TPP as soon as the window for entry reopens.
Data disclosure: The data underlying the figures in this analysis are available here [xlsx].