Table 7. Value chain gap degree and limited catch-up index.

Variables	Model 1	Model 2	Model 3	Model 4	Model 5	Model 6
	GVCP	GVCP	GVCP	GVCP	GVCP	GVCP
ROD					0.0029**	0.0071***
					(2.7417)	(7.2214)
L.ROD	-0.0274***	-0.0313***	-0.0280***	-0.0318***
	(-3.5141)	(-4.1228)	(-3.5708)	(-4.1811)
EPR		-0.0229		-0.0291		0.0295***
		(-0.1566)		(-0.1980)		(3.3029)
PGDP		0.0710		0.0742		-0.0887***
		(0.6158)		(0.6424)		(-13.2470)
TAF		0.0172		0.0165		-0.0433***
		(0.7076)		(0.6792)		(-47.2796)
REX		0.0712		0.0701		0.0878***
		(0.7925)		(0.7796)		(46.9651)
IEF		-0.2950		-0.2929		-0.2446***
		(-1.0134)		(-1.0049)		(-32.9654)
EMP		-0.1151***		-0.1152***		0.0135
		(-3.6502)		(-3.6398)		(1.5401)
EXP		0.1303***		0.1300***		0.0049
		(4.5235)		(4.5065)		(0.9808)
IMP		-0.0272		-0.0290		0.0319***
		(-0.6605)		(-0.7021)		(12.3728)
Constant	0.8939***	0.1970	0.8985***	0.2120	-0.0024**	0.5586***
	(145.3172)	(0.2229)	(145.5216)	(0.2393)	(-2.7417)	(19.6795)
National	YES	YES	YES	YES	YES	YES
Industry	YES	YES	YES	YES	YES	YES
Year	YES	YES	YES	YES	YES	YES
N	9,576	9,576	9,576	9,576	10,260	10,260
R2	0.790	0.793	0.792	0.795	0.973	0.975