| dc.description.abstract | In recent years, with rising prices and epidemic, Taiwan is facing imported inflation pressure. This study applies the ARDL Model and Threshold Regression Model to integrate the CPI and its seven categories. This paper investigates the short and long-term effects of the annual change of import price indices, TWD/USD spot exchange rate, and international oil prices on the annual change of CPI and its seven categories, and analyzes the pass-through degree of domestic prices when the annual change of import price indices, TWD/USD spot exchange rate, and international oil prices. From the long-term empirical results of ARDL model, the annual change of import price indices has a high correlation with the annual change of CPI, residence and miscellaneous categories, and transportation and communication categories have a positive and significant relationship with the annual change of import price indices and international oil prices. The empirical results of the Threshold Regression Model show that the annual change of CPI and its seven categories, the annual change of import price indices, TWD/USD spot exchange rate, and international oil prices can be divided into “high inflation pass-through”, “no threshold effect” and “low inflation pass-through”. In addition, the annual change of CPI is more affected by the annual change of import price indices, TWD/USD spot exchange rate, and international oil prices during periods of high inflation. During the period of low inflation, the three explanatory variables have a higher impact on the annual change of the transportation and communication category. Finally, in a period of high inflation, the annual change of the food category, and education and entertainment category has a significant negative impact on the annual change of TWD/USD spot exchange rate. | en_US |