Simulations show that the discrete

Simulations show that the discrete frequency k can be almost estimated accurately, and hence its standard deviation is not computed and reported. For all the parameters, the mean of each parameters come close to their true values, and the accuracy of the model improves as T increases, regardless of the frequency k, which is also consistent with the results in Theorems 1 and 2. Moreover, lower panel of Table 1 show that there is little efficiency loss by allowance for Fourier approximation in the estimation procedure even when there is no time-varying feature in the threshold.

結果 (繁體中文) 1:

仿真結果表明，所述離散頻率k可以幾乎精確地估計，因此其標準偏差，不計算和報告。對於所有參數，平均每個參數的接近其真值，並且模型的精度提高為T的增加，而不管頻率k，這也與在定理1和2的結果相一致。此外，降低表的面板1表明，存在用於估計過程中傅立葉近似通過津貼小效率損失甚至當在閾值沒有隨時間變化的特徵。

結果 (繁體中文) 2:

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結果 (繁體中文) 3:

模擬結果表明，離散頻率k幾乎可以準確估計，囙此其標準差沒有計算和報告。對於所有參數，每個參數的平均值都接近它們的真值，並且模型的精度隨著T的新增而提高，與頻率k無關，這也與定理1和定理2的結果一致。此外，錶1的下面板顯示，即使在閾值中不存在時變特徵，在估計過程中，通過考慮傅立葉近似，效率損失也很小。