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Table 10. Estimated production functions for vegetable of adopters<br />

and nonadopters.<br />

Independent<br />

variable<br />

Constant<br />

LAREA<br />

LLB<br />

Dummy 1<br />

Dummy 4 -1.262***<br />

(-2.26)<br />

R2 = 0.60<br />

Adopter Nonadopter<br />

F = 5.03<br />

Notes: i. Dependent variable is <strong>the</strong> yield value (SLR) per farm.<br />

2. Figures in paren<strong>the</strong>ses are t-values of <strong>the</strong> estimated<br />

coefficients.<br />

3. ****significant at 1 % level; *** significant at 5% level;<br />

** significant at 10% level; and * significant at 15% level.<br />

4. Definitions of independent variables: LAREA = log value<br />

of area in hectares; LLB = log value of days of preharvest<br />

labor per hectare; Dummy 1 = with site = 1; without site<br />

= 0; and Duminy 4 = owner operator = 1; tenant = 0<br />

5. F-value of <strong>the</strong> chow test is 3.39***.

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