Levinson, Arik (contributor); … - 2004 - [Elektronische Ressource]
both approximation error and standard measurement error in obtaining data on
net imports, N
it
.
The only component of … imports we could then use the standard omitted variable
formula to conclude that β
4
in (3.4) is biased downward, because β … regulation.
To find instruments we proceed in several steps. First, we note that standard theories of
regulation relate the …