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Table 3 Input and output variables used in previous port studies

From: A competitive analysis of EU ports by fixing spatial and economic dimensions

Reference

Research object

Model

Outputs

Inputs

Almawsheki and Shah (2015)

Technical efficiency of container terminals

DEA

Throughput (TEU)

Terminal area

Quay length

Quay crane

Yard equipment

Maximum draft

Barros (2003)

Efficiency of container ports

DEA

Ships

Movement of freight

Gross gauge

Break bulk cargo

Containerized freight

Solid bulk and liquid bulk

Total length of berth

Container berth length

Number of employees

Capital (Book value of asset)

Barros (2006)

Efficiency of container ports

DEA

Liquid bulk

Dry bulk

Number of ships

Number of passenger

Number of containers

Total sales

Number of employees

Value of capital invested

Size of operating Costs

Barros (2012)

Seaport performance

DEA

TEU

Dry bulk

Liquid bulk

Delays in handling ship cargo

Quay length

Seaport area

Labour

Barros and Peypoch (2007)

Seaport productivity

Distance Function, Luenberger Indicator

Total containers

Sales

Liquid bulk

Solid bulk

Ships

Total operational cost

Number of employees

Investment

Barros et al. (2011)

Efficiency of container ports

Luenberger Indicator, Malmquist Index

Throughout

Number of ship calls

Number of employees

Total cost

Number of cranes

Coto-Millan et al. (2000)

Seaport efficiency

SFA

Total of goods moved in the port

Passengers embarked and disembarked

Number of vehicle with passengers

Labour

Capital

Intermediate consumptions

Cullinane et al. (2006)

Efficiency of container ports

SFA

Container throughput

(TEU)

Terminal length

Terminal area

Number of quayside gantry cranes

Number of yard gantry cranes

Number of straddle carriers

Demirel et al. (2012)

Efficiency of container ports

DEA

Container Throughput (TEU)

Quay length

Terminal area

Quay cranes

Yard equipment

Maximum draft

Estache et al. (2002)

Efficiency gains from port reform in Mexico

SFA

Handling volume (tons)

Number or workers

Lengh of docks

Gong et al. (2019)

Shipping companies (73% involved in the container sector)

DEA

Cargo carried

Revenue

Undesirable outputs

Total assets

Capital expenditure

Capacity

Number of ships

Employees

Fuel cost

Min and Park (2005)

Efficiency of container ports

DEA

Cargo throughput

Size of labour force

Total length of query

Number of cranes

Size of hard areas

Nguyen et al. (2016)

Efficiency of Vietnamese ports

Bootstrap DEA & SFA

Throughput

Berth length

Terminal areas

Warehouse capacity

Cargo handling equipment

Notteboom et al. (2000)

Efficiency of container ports

SFA

Container traffic

Terminal quay length

Terminal area

Number of gantry cranes

Average no. of workers per crane

Panayides et al. (2011)

Efficiency of shipping companies

DEA and SFA

Market value of equity

Sales

Inputs profits

Book value of equity

Total assets

Number of employees

Capital expenditure

Rios and Maçada (2006)

Efficiency of container ports

DEA

TEUs handled

Average number of containers handled per hour per ship

Number of cranes

Number of berths

Number of employees

Terminal area

Amount of yard equipment

Roll and Hayuth (1993)

Port performance

DEA

Container throughput

Service level

User satisfaction

Ship calls

Size of labour force

Annual investment per port

The uniformity of facilities and cargo

Suárez-Alemán et al. (2016)

Container port efficiency

SFA

TEU throughput

Terminal area,

No. of mobile cranes

No. of gantry cranes

Berth length

Exogenous variables

Tongzon (2001)

Efficiency of container ports

DEA

Cargo throughput (TEU)

Ship working rate

Number of berths

Number of cranes

Number of tugs

Number of port authority Employees

Delay time