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Journal of Shipping and Trade

Table 8 Values of gravity model parameters

From: Assessment of freight traffic flows and harmful emissions in euro-mediterranean context: scenario analyses based on a gravity model

Service type

β1

β2

β3

G

Liquid bulk

0.418

0.369

− 1.746

1.5

Dry bulk

0.287

0.294

− 0.757

1.5

Container

0.320

0.189

− 0.299

1.4

Ro-Ro

0.280

0.359

− 1.288

0.9

General Cargo

0.157

0.101

− 0.522

1.3

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