0109 GMT September 23, 2019
The terms of trade index for products came to 102.63 last month, up 1.9 percent from a year earlier, according to preliminary data from the Bank of Korea (BOK), Yonhap reported.
The index measures the amount of imports a country can purchase for each unit of exports, showing how the country's exports are doing in comparison with those of others.
In December, export prices rose 4.9 percent from a year ago, while import prices increased 2.9 percent, the BOK data showed.
The income terms of trade rose five percent year-over-year to 149.55 last month, the data showed. The income terms of trade measures the amount of imports the country can purchase with the total value of its exports.