Estimating Performance Efficiency of Mining and Extracting Sectors Using DEA Models: The Case of Jordan

Table 5

Descriptive statistic for input and output variables.

Variables	N	Mean	Std. deviation	Skewness		Kurtosis
				Statistic	Std. error	Statistic	Std. error
Current assets	126	116096738	170279405	1.413	0.216	0.681	0.428
Non-current assets	126	154095030	238863286	1.535	0.216	1.025	0.428
Operating expenses	126	124276270	174729427	1.478	0.216	0.967	0.428
General administration expenses	126	14477754	24463219	2.193	0.216	5.150	0.428
Operating revenue	126	171383507	245544797	1.376	0.216	0.481	0.428
Market capitalization	126	396254882	820977697	2.646	0.216	6.787	0.428