Y = Response variable (Marine fish landing)
E0 = Constant variable
E1 = Coefficient of first control variable, X1
E2 = Coefficient of second control variable, X2
E3 = Coefficient of third control variable, X3
X1 = Controlled variable (Fishermen)
X2 = Controlled variable (Fishing boat)
X3 = Controlled variable (Fishing gears licensed)
H = Error