The Structure Performance Hypothesis and The Efficient Structure Performance Hypothesis-Revisited: The Case of Agribusiness Commodity and Food Products Truck Carriers in the South

Variables

1994
Parameter
Estimates

1995
Parameter
Estimates

1996
Parameter
Estimates

1997
Parameter
Estimates

1998
Parameter
Estimates

Intercept

-0.79532
(-1.3)

-0.44195
(-0.71)

-1.4363
(-2.28)

-0.81279
(-2.54)

-0.06087
(-0.15)

MKS

0.1387

(2.73)*

0.08251
(1.98)*

0.16559
(3.64)*

0.05928
(2.59)*

0.055
(2.18)*

CTR

0.01034
(0.58)

-0.00535
(-0.26)

-0.01299
(-0.71)

0.0278
(2.66)*

0.0018
(0.15)

CAE

2.90623

(51.14)*

2.52061

(47.71)*

1.9403

(25.97)*

0.63274

(22.87)*

0.51813

(13.68)*

CAR

-0.87076
(-0.76)

-0.9329
(-0.81)

1.59148
(1.33)

1.62353

(2.92)*

1.73487

(2.67)*

DER

0.00025281
(-0.2)

0.00296
(0.47)

-0.00185
(-0.13)

0.00024197
(0.06)

-0.00339
(-0.36)

Cdum1

-0.24825
(-0.2)

0.35273
(0.27)

0.20061
(0.14)

-0.33745
(-0.5)

-0.54576
(-0.66)

Rdum3

-0.27265
(-0.53)

-0.25548
(-0.43)

0.64428
(1.14)

0.12072
(0.41)

0.50784
(1.38)