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臺大管理論叢

27

卷第

4

87

3

單變量分析

購買

D&O

保險

(N = 2,221)

未購買

D&O

保險

(N = 1,929)

T

檢定

Wilcoxon

等級

和檢定

平均數 中位數 平均數 中位數

平均數差異

t

值)

中位數差異

Z

值)

TCRI

5.619

6.000

6.053

6.000

-0.434 ***

0.000 ***

(-8.409)

(-8.25)

Block

18.458

16.470 21.147

18.950

-2.690 ***

-2.480 ***

(-7.846)

(-8.017)

Insiderown

22.770

19.070 25.543

22.570

-2.773 ***

-3.500 ***

(-6.436)

(-8.118)

Instown

9.467

7.590

6.569

4.020

2.898 ***

3.570 ***

(11.407)

(13.477)

Deviation

6.769

2.260

4.889

1.330

1.880 ***

0.930 ***

(6.270)

(8.453)

Family

0.532

1.000

0.766

1.000

-0.234 ***

0.000 ***

(-16.145)

(-15.662)

Board

9.462

9.000

9.252

9.000

0.210 ***

0.000 ***

(3.188)

(5.811)

Inddir

0.008

0.000

0.007

0.000

0.001

0.000

(0.735)

(1.020)

Dual

0.308

0.000

0.311

0.000

-0.002

0.000

(-0.146)

(-0.146)

Inddir_Expert

0.483

0.000

0.225

0.000

0.258 ***

0.000 ***

(17.864)

(17.217)

Pledge

9.320

0.000

8.894

0.000

0.426

0.000

(0.794)

(1.215)

CEOturn

0.507

0.000

0.409

0.000

0.099 ***

0.000 ***

(4.320)

(5.020)

CFOturn

0.595

0.000

0.464

0.000

0.131 ***

0.000 ***

(4.959)

(5.712)

Size

15.633

15.409 15.242

15.064

0.390 ***

0.345 ***

(8.655)

(8.002)

ROA

-0.001

0.006

0.000

0.005

-0.001

0.001

(-1.208)

(0.536)

Lev

0.430

0.431

0.428

0.422

0.001

0.009

(0.275)

(0.439)