Table 2.

Descriptive analysis of the samples.

Variables		Obs	Proportion (%)
Enterprise size	Less than 100 employees	1,960	62.76
	100 ~ 499 employees	903	28.91
	500 ~ 1,000 employees	151	4.84
	More than 1,000 employees	109	3.49
Registration year	Before 1994	248	7.94
	1995 ~ 1999	596	19.09
	2000 ~ 2004	1,015	32.50
	Since 2005	1,264	40.47
Enterprise type	Sole Proprietorship	315	10.09
	Partnership	110	3.52
	Private Limited Company	2,416	77.36
	Joint-stock Company	216	6.92
Region	Western	618	19.79
	Central	727	23.28
	Eastern	1,778	56.93

There are 66 missing values in the variable enterprise type.