Prolamins have attracted increasing attention in recent years because of their potential application in active ingredient encapsulation and food packaging. As a byproduct in the Baijiu brewing industry with huge production (40 million tons every year), Jiuzao is a great source of prolamin...

This paper asks which aspects of a structural Nonparametric Instrumental Variables Regression (NPIVR) can be identified well and which ones cannot. It contributes to answering this question by characterizing the identified set of linear continuous functionals of the NPIVR under norm constraints....