Log-likelihood function for the generalized production function of Zellner and Revankar (1969)
zellner_revankar(
theta,
y,
Z,
sum = FALSE,
gradient = TRUE,
hessian = TRUE,
repar = TRUE
)a function.
the vector of parameters
the vector of response
the matrix of covariates
if FALSE, a vector of individual contributions to the
likelihood and the matrix of individual contributions to the
gradient are returned, if TRUE a log-likelihood scalar and a
gradient vector are returned
if TRUE, the gradient is returned as an attribute
if TRUE, the hessian is returned as an attrubute
if TRUE, the likelihood is parametrized such that
the constant return to scale hypothesis implies that two
coefficients are 0
Yves Croissant
ZELL:REVA:69micsr