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Journal of Shipping and Trade

Table 4 Estimation results for all variables

From: Benchmarking bulkers delivered between 2010 and 2016, identifying the effect of the EEDI introduction

  

2010

2011

2012

2013

2014

2015

2016

DWT -

N / R2

478 / 0.841

590 / 0.831

558 / 0.781

406 / 0.7

380 / 0.607

430 / 0.52

345 / 0.558

EEDI

a / b

0.987 / -0.464

1.203 / -0.482

1.307 / -0.493

0.642 / -0.438

0.425 / -0.423

0.561 / -0.436

0.983 / -0.475

Length -

N / R2

478 / 0.773

590 / 0.823

558 / 0.742

406 / 0.665

380 / 0.546

430 / 0.493

345 / 0.499

EEDI

a / b

3.396 / -1.414

3.946 / -1.515

4.254 / -1.574

3.259 / -1.397

2.664 / -1.294

3.074 / -1.374

3.474 / -1.451

Fn -

N / R2

478 / 0.533

590 / 0.414

558 / 0.329

406 / 0.155

380 / 0.126

430 / 0.109

345 / 0.154

EEDI

a / b

0.117 / 2.35

−0.087 / 2.237

− 0.475 / 2.04

−2.185 / 1.118

−2.521 / 0.959

− 2.439 / 1.009

−2.057 / 1.238

DWT -

N / R2

478 / 0.151

590 / 0.229

558 / 0.178

406 / 0.055

380 / 0.015

430 / 0.018

345 / 0.039

Adm.const.

a / b

4.622 / 0.117

3.951 / 0.177

4.028 / 0.173

4.792 / 0.11

5.362 / 0.064

5.207 / 0.078

4.847 / 0.112

Length -

N / R2

478 / 0.157

590 / 0.269

558 / 0.192

406 / 0.061

380 / 0.013

430 / 0.024

345 / 0.034

Adm.const.

a / b

3.897 / 0.378

2.679 / 0.605

2.795 / 0.59

3.981 / 0.38

5.038 / 0.193

4.487 / 0.297

4.282 / 0.337

Fn -

N / R2

478 / 0.005

590 / 0.002

558 / 0.008

406 / 0.175

380 / 0.216

430 / 0.158

345 / 0.103

Adm.const.

a / b

5.685 / -0.129

5.745 / -0.094

6.362 / 0.228

7.936 / 1.068

8.222 / 1.206

8.188 / 1.186

7.706 / 0.904

DWT -

N / R2

478 / 0.89

590 / 0.879

558 / 0.822

406 / 0.831

380 / 0.778

430 / 0.682

345 / 0.627

Power

a / b

3.305 / 0.563

3.312 / 0.563

3.501 / 0.546

2.858 / 0.599

2.827 / 0.599

2.946 / 0.587

3.393 / 0.546

Length -

N / R2

478 / 0.832

590 / 0.792

558 / 0.779

406 / 0.794

380 / 0.772

430 / 0.655

345 / 0.617

Power

a / b

0.296 / 1.733

0.545 / 1.688

0.243 / 1.742

−0.747 / 1.915

−0.844 / 1.928

−0.491 / 1.86

0.086 / 1.752

Fn -

N / R2

478 / 0.634

590 / 0.467

558 / 0.43

406 / 0.33

380 / 0.381

430 / 0.348

345 / 0.263

Power

a / b

4.047 / -3.027

4.661 / -2.698

5.007 / -2.517

5.787 / -2.049

5.701 / -2.086

5.622 / -2.122

6.293 / -1.759

DWT -

N / R2

478 / 0.731

590 / 0.593

558 / 0.561

406 / 0.433

380 / 0.482

430 / 0.488

345 / 0.474

Speed ratio

a / b

1.458 / -0.133

1.275 / -0.117

1.294 / -0.117

1.335 / -0.121

1.55 / -0.139

1.53 / -0.138

1.538 / -0.138

Length -

N / R2

478 / 0.797

590 / 0.646

558 / 0.587

406 / 0.455

380 / 0.498

430 / 0.488

345 / 0.505

Speed ratio

a / b

2.345 / -0.443

2.034 / -0.384

2.095 / -0.393

2.166 / -0.406

2.453 / -0.458

2.383 / -0.445

2.473 / -0.461

DWT -

N / R2

478 / 0.358

590 / 0.346

558 / 0.349

406 / 0.328

380 / 0.294

430 / 0.337

345 / 0.335

LDT

a / b

1.117 / -0.268

0.958 / -0.254

1.195 / -0.278

1.415 / -0.297

1.114 / -0.274

1.417 / -0.304

1.579 / -0.321

Length -

N / R2

478 / 0.211

590 / 0.219

558 / 0.244

406 / 0.226

380 / 0.206

430 / 0.235

345 / 0.233

LDT

a / b

1.64 / -0.656

1.546 / -0.638

2.181 / -0.762

2.437 / -0.805

2.05 / -0.743

2.444 / -0.822

2.654 / -0.867

Fn -

N / R2

478 / 0.122

590 / 0.044

558 / 0.09

406 / 0.04

380 / 0.023

430 / 0.032

345 / 0.021

LDT

a / b

−0.043 / 1

−0.778 / 0.599

−0.267 / 0.898

−0.845 / 0.565

−1.228 / 0.383

−1.085 / 0.476

−1.256 / 0.403

Length-

N / R2

478 / 0.861

590 / 0.884

558 / 0.865

406 / 0.863

380 / 0.853

430 / 0.83

345 / 0.791

Width

a / b

4.17 / 0.141

3.006 / 0.147

−0.025 / 0.16

−0.524 / 0.162

1.967 / 0.151

2.99 / 0.145

4.542 / 0.136

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