Technical Efficiency of Fishing Activities: A Case Study of Small-Scale Trawling in the Mekong Delta, Vietnam

Table 2

Generalized likelihood ratio tests of the hypotheses for parameters of the stochastic production frontier and technical inefficiency models for the small-scale trawl net in the Mekong Delta.

Null hypothesis	Likelihood ratio	Degrees of freedom	Critical value χ^2	Decision
H0: β4 = β5 = … = β9 = 0	11.62	6	10.645	Reject H0
H0:  = δ0 = δ1 = … = δ10 = 0	77.695	9	22.525	Reject H0
H0: δ1 = δ2 = …. = δ10 = 0	77.694	10	23.209	Reject H0

Note: and are statistically significant at 1% and 10%. The critical value for the second hypothesis has been calculated using the tables in Kodde and Palm [34].