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Correction: Theoretical study of the effect of ports in the formation of city systems

The Original Article was published on 04 July 2022

Correction to: Journal of Shipping and Trade 2022, 7(1):16

Following publication of the original article [1], some numbers and letters were wrongly placed in the equations (1) and (2) under the heading Krugman’s formulation due to typesetting errors.

The equations currently show:

$$\begin{aligned} & \overline{P}_{i} =^{{\text{X}}} P_{k} \left( t \right)/{9} \\ & k \in\Omega \\ \end{aligned}$$
$$V_{{i{1}}} \left( t \right) = K_{{1}} * \overline{P}_{i} \left( t \right) - \beta$$

The equations should show:

$$\bar{P}_{i} = \sum\limits_{k \in \Omega } {P_{k} \left( t \right)/9}$$
$$V_{i}^{1} \left( t \right) = K_{1} * \bar{P}_{i} \left( t \right)^{ - \beta }$$

The original article [1] has been corrected.


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Correspondence to Igor Lugo.

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Lugo, I., Martínez-Mekler, G. Correction: Theoretical study of the effect of ports in the formation of city systems. J. shipp. trd. 7, 18 (2022).

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