Table 3 The correlation coefficient matrix for 2019.

From: Performance evaluation of listed Vietnamese logistics companies in the pre-, during, and post-COVID-19 based on a three-layer MCDM method

Index

C1

C2

C3

C4

C5

C6

C7

C8

C9

C10

C1

1

−0.3760

0.2584

0.0424

−0.0050

0.4143

0.3814

−0.1158

0.5569

−0.1769

C2

−0.3760

1

−0.4908

−0.1314

−0.0584

−0.5132

−0.0720

0.1347

−0.2871

−0.1157

C3

0.2584

−0.4908

1

0.2046

0.1061

0.2671

−0.1988

−0.4117

0.0592

0.5599

C4

0.0424

−0.1314

0.2046

1

0.3973

0.6132

0.1142

−0.2565

−0.3489

0.1319

C5

−0.0050

−0.0584

0.1061

0.3973

1

0.2671

0.3277

−0.1696

0.0599

0.1217

C6

0.4143

−0.5132

0.2671

0.6132

0.3415

1

0.1607

−0.3065

0.0028

0.2182

C7

0.3814

−0.0720

−0.1988

0.1142

0.3277

0.1607

1

0.2486

−0.0242

−0.6741

C8

−0.1158

0.1347

−0.4117

−0.2565

−0.1696

−0.3065

0.2486

1

−0.0885

−0.6210

C9

0.5569

−0.2871

0.0592

−0.3489

0.0599

0.0028

−0.0242

−0.0885

1

0.0006

C10

−0.1769

−0.1157

0.5599

0.1319

0.1217

0.2182

−0.6741

−0.6210

0.0006

1