Table III.

Maximum likelihood estimates of the sample selection models for the log of milk and cattle, 2006

Regressorsln(milk)ln(cattle)
Family DFamily ABCNon-familyFamily DFamily ABCNon-family
Intercept6.018*** (0.106)7.448*** (0.078)8.851*** (0.180)0.314*** (0.078)0.553*** (0.068)0.452** (0.167)
Cow0.110*** (0.001)0.083*** (0.001)0.041*** (0.000)   
ln(anatpast)0.006*** (0.002)0.002* (0.001)0.002 (0.002)0.092*** (0.001)0.083*** (0.001)0.099*** (0.002)
ln(adegpast)−0.013*** (0.003)−0.015*** (0.002)−0.010** (0.004)0.098*** (0.002)0.080*** (0.002)0.059*** (0.003)
ln(andegpast)−0.013*** (0.002)−0.002 (0.001)0.012*** (0.003)0.146*** (0.001)0.132*** (0.001)0.139*** (0.002)
ln(aforage)0.020*** (0.003)0.043*** (0.002)0.027*** (0.004)0.109*** (0.002)0.095*** (0.002)0.072*** (0.003)
ln(aforest)−0.007*** (0.001)−0.017*** (0.001)−0.007** (0.002)0.065*** (0.001)0.059*** (0.001)0.069*** (0.002)
lf0.001 (0.002)0.000 (0.002)0.030*** (0.004)0.014*** (0.001)0.021*** (0.001)0.081*** (0.003)
female0.012 (0.010)0.005 (0.008)−0.080** (0.022)−0.205*** (0.007)−0.253*** (0.006)−0.300*** (0.018)
Age−0.002*** (0.000)−0.003*** (0.000)−0.001** (0.000)0.011*** (0.000)0.005*** (0.000)0.007*** (0.000)
School10−0.020** (0.007)0.006 (0.005)0.022 (0.014)0.153*** (0.004)0.174*** (0.004)0.128*** (0.011)
School110.020 (0.015)0.105*** (0.013)0.136*** (0.023)0.279*** (0.010)0.338*** (0.010)0.271*** (0.018)
School230.041** (0.016)0.112*** (0.014)0.184*** (0.019)0.390*** (0.011)0.444*** (0.010)0.356*** (0.015)
Coop0.120*** (0.020)0.138*** (0.014)0.147*** (0.026)0.109*** (0.015)0.126*** (0.011)0.189*** (0.020)
Atraction0.028*** (0.006)−0.014** (0.005)−0.036** (0.012)0.026*** (0.005)0.030*** (0.004)0.048*** (0.010)
Mtraction0.086*** (0.007)0.069*** (0.005)0.159*** (0.012)0.060*** (0.005)0.107*** (0.004)0.164*** (0.010)
Guidance0.036** (0.010)0.067*** (0.007)0.082*** (0.015)0.037*** (0.007)0.030*** (0.006)0.120*** (0.012)
Fertilizep0.127*** (0.017)0.166*** (0.013)0.187*** (0.023)0.136*** (0.013)0.125*** (0.010)0.079*** (0.018)
Integration0.023+ (0.012)0.063*** (0.009)0.076** (0.021)0.034*** (0.008)0.029*** (0.007)−0.007 (0.016)
Rest0.011 (0.010)−0.046*** (0.007)−0.063** (0.017)−0.072*** (0.007)−0.095*** (0.005)−0.180*** (0.014)
Rotation−0.062*** (0.008)−0.074*** (0.006)−0.116*** (0.013)0.144*** (0.006)0.076*** (0.005)0.068*** (0.011)
Diseasec−0.199*** (0.009)−0.382*** (0.007)−0.778*** (0.019)0.410*** (0.012)0.273*** (0.009)0.138*** (0.021)
Well0.062*** (0.007)0.058*** (0.005)0.056*** (0.013)0.146*** (0.005)0.144*** (0.004)0.283*** (0.010)
Weir0.024** (0.009)−0.023** (0.006)0.008 (0.013)0.122*** (0.006)0.093*** (0.005)0.245*** (0.011)
Cistern−0.007 (0.007)−0.014** (0.005)−0.062*** (0.013)−0.035*** (0.005)−0.042*** (0.004)−0.102*** (0.010)
Specialized0.350*** (0.007)0.322*** (0.005)0.469*** (0.013)0.139*** (0.004)0.184*** (0.004)0.493*** (0.010)
Integrated0.444*** (0.007)0.450*** (0.005)0.521*** (0.013)0.221*** (0.004)0.323*** (0.004)0.301*** (0.010)
Credit0.013+ (0.008)0.008 (0.006)−0.096*** (0.016)0.000 (0.005)−0.055*** (0.005)−0.213*** (0.013)
Avgtemp0.018*** (0.002)−0.002 (0.002)−0.015** (0.004)0.012*** (0.002)0.027*** (0.001)0.023*** (0.004)
Precip0.007*** (0.001)0.008*** (0.001)0.001 (0.002)0.008*** (0.001)0.008*** (0.001)0.013*** (0.002)
Precip2−3.E-5*** (0.000)−4.E-5*** (0.000)−8.E-6 (0.000)−4.E-5*** (0.000)−4.E-5*** (0.000)−5.E-5*** (0.000)
Regionyesyesyesyesyesyes
σ0.796***0.928***1.210***0.790***0.809***1.039***
ρ−0.696***−0.910***−0.939***0.292***0.065***−0.166***
n343,689330,23184,770343,689330,23184,770
Log likelihood−133,059−247,856−78,544−343,387−381,864−110,807

Notes:

Standard errors between parentheses;

***Significant at 0.1%;

**Significant at 1%;

*Significant at 5%; +Significant at 10%

Source: Devised using microdata of the Agricultural Census 2006
[ViewLarge]
This Feature Is Available To Subscribers Only

or Create an Account

Close subscription notice
Close access options