For example, in a common effects linear instrumental variables context, a researcher with two candidate instrumental variables must choose between using both for estimation, or using one to test the exogeneity of the other.
Nevertheless, the externality of an instrument does not necessarily also assures exogeneity; that is, it does not automatically fulfil the orthogonality condition required for consistent estimation in the instrumental variable context [26].
We have been a party at times instrumental in the context of minority governments.
The seminal work of Waldinger has been particularly instrumental in this context (see, e.g., Waldinger 19881996 Waldinger et al. 1990).
Aware that the public appreciated instrumental music with context, Liszt provided written prefaces for nine of his symphonic poems.
Two main kinase families are instrumental in this context: the MAP kinase family member p38 [ 3] and PKC-ε related kinase [ 4].
Son Lux's songs were a linchpin, but the instrumental sections provided subtler context for the choreography.
Thus, some African art has value as entertainment; some has political or ideological significance; some is instrumental in a ritual context; and some has aesthetic value in itself.
The paper also shows the merit of an instrumental approach in the context of urban and regional studies.
We don't classify this movement as a religious phenomenon, but images used in an ideological context are instrumental in reinforcing, justifying and promoting these thoughts, feelings and actions in young people.
