Research Article

Illiquidity, Uncertainty Indices, and COVID-19 Outbreak Conditions: Empirical Evidence from the US Financial Market

Table 8

QARDL estimation results: tranquil period (independent variables: EPU and IDEMV).

Quantile (τ)0.250.500.75

VariablesCoeffPr (>|t|)CoeffPr (>|t|)CoeffPr (>|t|)

Short run
 Const−1.24650.312515.85730.125531.35900.1686
 AL_1−0.99200.000−0.94660.000−0.88890.000
 IDEMV0.01140.9799−4.62070.2254−3.13160.7088
 EPU−0.03730.0000−0.20050.0041−0.13170.3895
 IDEMV_10.77160.08875.76650.12870.20720.9802
 EPU_10.00800.36140.05340.46540.02500.8766
 IDEMV_2−0.47820.2894−4.81390.2032−7.34070.3779
 EPU_20.01460.09950.07670.29960.18120.2659
 IDEMV_31.09150.01984.61550.2383−5.00940.5608
 EPU_30.02220.01230.08230.26640.17500.2833
 IDEMV_42.70810.00010.61610.00716.56950.4475
 EPU_40.00830.32080.01840.79290.17090.2687

Long run
 IDEMV0.01150.9799−4.88130.2237−3.52310.7081
 EPU−0.03760.0000−0.21180.0044−0.14810.3929
 IDEMV_10.77780.08796.09190.13030.23310.9802
 EPU_10.00800.36090.05640.46640.02810.8766
 IDEMV_2−0.48200.2888−5.08550.2046−8.25840.3822
 EPU_20.01470.09860.08110.29970.20390.2696
 IDEMV_31.10030.01944.87590.2404−5.63560.5593
 EPU_30.02240.01170.08700.26360.19680.2802
 IDEMV_42.72990.00011.21510.00757.39070.4496
 EPU_40.00840.31990.01940.79250.19220.2659

Note. Table 8 reports the QARDL estimation results of the effect of EPU and IDEMV on the illiquidity market during the tranquil period that spans from January 01, 2019, to December 30, 2019. Significant at 10%; significant at 5%; significant at 1%.