Technical Efficiency of Fishing Activities: A Case Study of Small-Scale Trawling in the Mekong Delta, Vietnam
Table 1
Input and output variables used in the study.
Variables
Mean
Standard deviation
Minimum
Maximum
(1) Output
Average revenue per trip (million VND)
19.9
18.5
0.5
140.0
(2) Inputs
Fishing day (day)
3.3
2.4
1.0
15.0
Crew member (person)a
3.2
0.9
2.0
6.0
Engine (HP)b
63.1
38.5
8.0
185.0
(3) Vessel and operator specific variable
Experience (year)
16.26
7.82
2.0
40.0
Family crew (person)
1.76
0.84
0
5
Used time of vessel (year)
9.00
5.2
1.0
30.0
Vessel size (1 = medium, 0 = small)c
0.58
0.49
0
1
Mesh size (mm)
24.52
6.4
12.0
50.0
Net numbers (net)
2.73
1.25
1
6
Fishing ground (1 = west coast, 0 = east coast)
0.47
0.50
0
1
Operation distance from shore (nautical miles)
12.36
6.74
0.3
30
Gear registration (1 = yes, 0 = no)
0.83
0.37
0
1
Cooperation (1 = yes, 0 = no)
0.74
0.44
0
1
Notes: total number of observations (n) = 223. All economic values are in million VND (US$1 = 23.577 VND in 2021). aThe crew members include the captain. bHP- a unit measure the engine power (HP–horsepower). cMedium vessel: 12-under 15 m in length; small vessel: 6-under 12 m in length.
