| 1 | The 180 percent duty was applied to cars with engine capacity under 2300 cc.; the 300 percent rate was levied on those with larger engine capacity. |
| 2 | See Paitoon Wiboonchutikula et al. Trade in Manufactured Goods and Mineral Products. Background Paper No. 4 of the TDRI 1989 Year-End Conference on Thailand in the International Economic Community. December, 1989. Table 2.1. |
| 3 | These calculations do not take account of the additional protection provided by the differential rates of business tax applied to domestic cars and imports. Nor do they take account of the negative protection to local vehicle producers arising from local content rules, or the reduction in this cost penalty that might arise from reduced duties on basic raw materials used in local components production. |