Table 2 Natural gas price: parameter...

Table 2

Natural gas price: parameter estimates after variable selection

$\overset{̅}{x}$	$m$	$θ$	$β$	$α$	$ϑ_{D Y S}$	$ϑ_{MUI}$
0.104	0.024*	0.830*	0.102**	−0.551	0.548*	1.372*
[0.155]	[0.016]	[0.127]	[0.213]	[0.902]	[0.377]	[0.398]

$ϑ_{F M U I}$	$ϕ_{11}$	$ϕ_{12}$	$ϕ_{21}$	$ϕ_{22}$	$ϕ_{31}$	$ϕ_{32}$
0.506**	1.445*	3.101*	1.054**	2.068*	0.902**	5.260*
[0.882]	[0.982]	[5.012]	[1.282]	[2.031]	[1.862]	[3.126]

Note(s): * and ** indicate significance at the 1% and 5% levels, respectively. Standard deviations are reported in square brackets

Source(s): Authors' own elaboration

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