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Table 6 Comparison of the sales growth between stressed and control groups at different shock levels. Results are shown separately for stressed customers, suppliers and bidirectional partners in the first and second years following the shock event. We provide sample sizes (N), group means and standard deviations, t-statistics and corresponding p-values of independent t-tests between the groups

From: Companies under stress: the impact of shocks on the production network

Stress level drop in sales (%)

Edge type

Year

N

Stressed mean ± SD

Control mean ± SD

t-value

p-value

20

customers

1

977

−7.80 ± 28.19

−3.48 ± 26.97

3.46e + 00

5.48e − 04

25

customers

1

925

−7.16 ± 28.57

−4.07 ± 27.04

2.39e + 00

1.71e − 02

30

customers

1

919

−6.29 ± 28.17

−2.65 ± 28.26

2.77e + 00

5.75e − 03

35

customers

1

866

−6.10 ± 28.05

−1.94 ± 27.76

3.10e + 00

1.96e − 03

40

customers

1

792

−5.71 ± 26.56

−1.50 ± 28.32

3.05e + 00

2.34e − 03

45

customers

1

718

−6.02 ± 26.83

−1.83 ± 26.37

2.99e + 00

2.87e − 03

50

customers

1

614

−5.28 ± 27.57

−1.39 ± 26.66

2.51e + 00

1.21e − 02

55

customers

1

509

−6.04 ± 27.76

−1.86 ± 26.53

2.45e + 00

1.43e − 02

60

customers

1

408

−5.70 ± 28.56

−1.09 ± 25.00

2.45e + 00

1.44e − 02

65

customers

1

338

−5.63 ± 28.28

−1.59 ± 26.10

1.93e + 00

5.40e − 02

70

customers

1

299

−5.99 ± 28.15

−1.00 ± 24.01

2.33e + 00

2.00e − 02

75

customers

1

236

−6.08 ± 28.02

1.19 ± 27.88

2.82e + 00

4.98e − 03

80

customers

1

168

−7.09 ± 26.85

3.54 ± 25.76

3.70e + 00

2.49e − 04

20

customers

2

977

−3.43 ± 31.54

−0.83 ± 27.68

1.94e + 00

5.25e − 02

25

customers

2

925

−3.72 ± 31.70

0.74 ± 27.68

3.23e + 00

1.27e − 03

30

customers

2

919

−4.57 ± 31.66

1.69 ± 27.91

4.49e + 00

7.45e − 06

35

customers

2

866

−4.32 ± 32.38

−0.41 ± 27.72

2.70e + 00

7.01e − 03

40

customers

2

792

−2.80 ± 31.76

−0.43 ± 27.53

1.59e + 00

1.12e − 01

45

customers

2

718

−2.89 ± 32.14

0.27 ± 28.20

1.98e + 00

4.74e − 02

50

customers

2

614

−3.23 ± 32.85

−1.63 ± 25.77

9.51e − 01

3.42e − 01

55

customers

2

509

−2.58 ± 33.83

−0.77 ± 26.64

9.51e − 01

3.42e − 01

60

customers

2

408

−4.26 ± 35.42

0.44 ± 26.71

2.14e + 00

3.28e − 02

65

customers

2

338

−4.68 ± 35.59

−1.95 ± 27.60

1.11e + 00

2.65e − 01

70

customers

2

299

−3.83 ± 35.76

−2.21 ± 27.23

6.23e − 01

5.34e − 01

75

customers

2

236

−4.65 ± 35.27

−0.30 ± 29.34

1.46e + 00

1.46e − 01

80

customers

2

168

−4.17 ± 34.29

1.05 ± 25.22

1.59e + 00

1.13e − 01

20

suppliers

1

996

−2.43 ± 27.34

−1.98 ± 24.63

3.88e − 01

6.98e − 01

25

suppliers

1

928

−1.78 ± 26.79

−0.49 ± 25.11

1.07e + 00

2.84e − 01

30

suppliers

1

889

−1.33 ± 26.68

−3.70 ± 23.79

−1.98e + 00

4.82e − 02

35

suppliers

1

825

−1.08 ± 26.78

−1.71 ± 24.57

−4.99e − 01

6.18e − 01

40

suppliers

1

721

−0.77 ± 26.33

−1.66 ± 25.97

−6.47e − 01

5.18e − 01

45

suppliers

1

635

−0.54 ± 26.16

−0.97 ± 24.28

−2.98e − 01

7.65e − 01

50

suppliers

1

562

0.03 ± 25.31

−1.13 ± 24.60

−7.78e − 01

4.37e − 01

55

suppliers

1

483

1.23 ± 25.10

0.10 ± 24.67

−7.01e − 01

4.84e − 01

60

suppliers

1

420

1.29 ± 24.73

1.10 ± 22.64

−1.18e − 01

9.06e − 01

65

suppliers

1

378

1.65 ± 26.66

2.58 ± 24.06

5.02e − 01

6.16e − 01

70

suppliers

1

320

1.23 ± 27.05

1.13 ± 26.89

−4.84e − 02

9.61e − 01

75

suppliers

1

273

0.21 ± 26.59

−0.34 ± 27.20

−2.39e − 01

8.11e − 01

80

suppliers

1

184

−1.02 ± 23.55

−1.25 ± 26.26

−9.09e − 02

9.28e − 01

20

suppliers

2

996

−0.47 ± 29.74

−0.05 ± 24.21

3.52e − 01

7.25e − 01

25

suppliers

2

928

−0.20 ± 28.96

0.46 ± 24.76

5.26e − 01

5.99e − 01

30

suppliers

2

889

−1.76 ± 29.88

0.51 ± 25.73

1.72e + 00

8.57e − 02

35

suppliers

2

825

−2.19 ± 29.06

0.17 ± 24.76

1.77e + 00

7.63e − 02

40

suppliers

2

721

−1.62 ± 29.88

1.79 ± 27.13

2.27e + 00

2.32e − 02

45

suppliers

2

635

−1.61 ± 30.12

2.38 ± 26.01

2.52e + 00

1.17e − 02

50

suppliers

2

562

−1.22 ± 29.71

1.65 ± 26.95

1.70e + 00

9.01e − 02

55

suppliers

2

483

−0.60 ± 28.43

1.61 ± 25.51

1.27e + 00

2.04e − 01

60

suppliers

2

420

−0.62 ± 28.05

0.55 ± 24.84

6.39e − 01

5.23e − 01

65

suppliers

2

378

−1.33 ± 29.76

1.43 ± 25.85

1.36e + 00

1.74e − 01

70

suppliers

2

320

−0.70 ± 28.53

−0.11 ± 24.35

2.82e − 01

7.78e − 01

75

suppliers

2

273

−1.22 ± 29.87

0.96 ± 24.06

9.39e − 01

3.48e − 01

80

suppliers

2

184

1.28 ± 26.44

1.34 ± 24.17

2.33e − 02

9.81e − 01

20

bidirectional

1

159

−2.23 ± 26.23

−5.08 ± 22.37

−1.04e + 00

2.97e − 01

25

bidirectional

1

154

−4.04 ± 28.64

−2.50 ± 23.17

5.18e − 01

6.05e − 01

30

bidirectional

1

142

−4.10 ± 29.32

−2.91 ± 19.59

4.00e − 01

6.89e − 01

35

bidirectional

1

135

−6.01 ± 30.46

−0.25 ± 21.06

1.81e + 00

7.15e − 02

40

bidirectional

1

135

−5.35 ± 28.78

−1.84 ± 18.96

1.18e + 00

2.38e − 01

45

bidirectional

1

119

−6.61 ± 26.59

1.19 ± 23.80

2.38e + 00

1.79e − 02

50

bidirectional

1

102

−6.38 ± 26.31

0.32 ± 20.75

2.02e + 00

4.46e − 02

55

bidirectional

1

92

−6.04 ± 28.77

−1.59 ± 23.32

1.15e + 00

2.51e − 01

60

bidirectional

1

86

−5.65 ± 27.51

2.13 ± 20.33

2.11e + 00

3.63e − 02

65

bidirectional

1

77

−5.52 ± 26.50

−2.56 ± 23.30

7.37e − 01

4.62e − 01

70

bidirectional

1

69

−6.29 ± 28.49

0.15 ± 24.70

1.42e + 00

1.58e − 01

75

bidirectional

1

57

−8.12 ± 30.44

−6.24 ± 24.03

3.66e − 01

7.15e − 01

80

bidirectional

1

50

−6.93 ± 31.32

2.28 ± 25.85

1.60e + 00

1.12e − 01

20

bidirectional

2

159

−8.60 ± 30.35

1.45 ± 20.51

3.46e + 00

6.23e − 04

25

bidirectional

2

154

−6.39 ± 32.65

1.67 ± 22.25

2.53e + 00

1.19e − 02

30

bidirectional

2

142

−5.43 ± 33.10

2.27 ± 25.53

2.20e + 00

2.89e − 02

35

bidirectional

2

135

−5.93 ± 33.16

3.17 ± 24.70

2.55e + 00

1.12e − 02

40

bidirectional

2

135

−5.77 ± 31.69

0.02 ± 22.53

1.73e + 00

8.46e − 02

45

bidirectional

2

119

−7.92 ± 31.40

1.35 ± 20.62

2.69e + 00

7.64e − 03

50

bidirectional

2

102

−7.30 ± 30.98

−2.22 ± 28.78

1.21e + 00

2.26e − 01

55

bidirectional

2

92

−8.22 ± 31.10

−0.21 ± 26.09

1.89e + 00

6.01e − 02

60

bidirectional

2

86

−8.67 ± 30.48

2.66 ± 20.35

2.87e + 00

4.68e − 03

65

bidirectional

2

77

−6.87 ± 29.17

−1.20 ± 20.28

1.40e + 00

1.63e − 01

70

bidirectional

2

69

−5.87 ± 29.04

−1.62 ± 26.87

8.92e − 01

3.74e − 01

75

bidirectional

2

57

−5.17 ± 29.90

−3.20 ± 22.86

3.94e − 01

6.94e − 01

80

bidirectional

2

50

−2.19 ± 31.21

−6.68 ± 25.15

−7.92e − 01

4.30e − 01