Free trade agreements and market integration: Evidence from South Korea

We consider the effects of free trade agreements on market integration between South Korea and its solo and trade-bloc FTA partners. Free trade agreements should reduce tariffs and trade costs and lead to faster home-to-foreign price convergence. We investigate these ideas with a non-linear self-exciting threshold autoregressive (TAR) model, by introducing a threshold break at the effective FTA date. This strategy allows us to consider: (1) whether trade costs have declined after the free trade agreement; and (2) whether the speed of mean reversion in the home-foreign price differential is faster after the FTA. Our study includes nine of South Korea's free trade agreements and covers twenty-eight partner countries. We find evidence that after free trade agreements, trade costs have been reduced for nine countries, providing evidence that greater market integration has been achieved on this score. However, evidence on whether the speed of home-to-foreign price convergence increases after free trade agreements is lacking. (C) 2018 Elsevier Ltd. All rights reserved.