Does High-Speed Rail Promote Enterprises Productivity? Evidence from China

Table 3

Fitting degree and parameter values of decay function from 2007 to 2013.

	year	2007	2009	2011	2013	2007	2009	2011	2013
	decay function	R^2				parameters
1		0.0114	0.0329	0.0680	0.0637	0.0877	0.2078	0.5202	0.5485
2		0.0061	0.0182	0.0394	0.0422	0.0099	0.0251	0.0681	0.0749
3		0.0055	0.0171	0.0366	0.0397	0.0229	0.0623	0.1696	0.1862
4		0.0032	0.0107	0.0217	0.0273	0.0011	0.0037	0.0109	0.0123
5		0.0025	0.0079	0.0140	0.0204	0.0000	0.0000	0.0001	0.0001

Note: due to space constraints, we have reported partial data.