Did weekly economic index and volatility index impact US food sales during the first year of the pandemic?

Financial Innovation

Table 3 QARDL results

Parameters	Quantile v = 0.25		Quantile v = 0.50		Quantile v = 0.75		Quantile v = 0.95
Parameters	Coef	p value	Coef	p value	Coef	p value	Coef	p value
π_* (v)	*− 1.062*^a	*0.000*	*− 0.961*^a	*0.002*	*− 0.919*^b	*0.042*	*− 1.250*^b	*0.044*
ρ_VIX* (v)	0.060	0.429	0.100	0.150	*0.363*^a	*0.000*	*0.254*^a	*0.002*
ω_WEI* (v)	− 0.004	0.190	− 0.005	0.329	*0.013*^b	*0.041*	0.009	0.175
ꝺ \(\delta_{1}\)(v)	0.183	0.452	0.109	0.712	0.120	0.660	0.318	0.417
ꝺ \(\alpha_{0}\)(v)	− 0.022	0.649	0.009	0.860	0.121	0.216	*0.181*^c	*0.096*
ꝺ \(\alpha_{1}\)(v)	0.008	0.923	− 0.012	0.885	− 0.150	0.144	− 0.082	0.494
ꝺ \(\beta_{0}\)(v)	− 0.005	0.839	− 0.005	0.864	0.018	0.480	0.033	0.211
ꝺ \(\beta_{1}\)(v)	0.013	0.552	− 0.001	0.956	0.023	0.251	− 0.035	0.288
ꝺ \(\beta_{2}\) (v)	− 0.009	0.661	0.008	0.654	0.021	0.184	*0.043*^a	*0.007*
σ_*(v)	*24.593*^a	*0.000*	*22.149*^a	*0.002*	*20.503*^b	*0.044*	*28.339*^b	*0.047*

Notes: The coefficients in bold-italics with a, b, and c indicates level of significance at 1%, 5%, and 10%, respectively