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. 2021 Mar 10;11:9. doi: 10.1186/s13561-021-00304-4

Table 5.

Correlation matrix between continuous variables

1 2 3 4 5 6
1. ROA 1
2. Size (Log beds) 0.0888*** 1
3. Age (Log years) 0.0616*** 0.2013*** 1
4. Technological index 0.0793*** 0.5094 *** 0.0867*** 1
5. Leverage −0.4077*** −0.0798*** −0.2379*** − 0.0719*** 1
6. Tangilbility −0.0717*** −0.0286 0.1461*** −0.0056 − 0.0409** 1

**, ***: significant to 5 and 1%, respectively

Source: Own elaboration