//-->
Data Envelopment Analysis as Nonparametric Least Squares Regression
Kuosmanen, Timo, (2018)
A Nonparametric Least-Squares Test for Checking a Polynomial Relationship
Gijbels, Irene, (2000)
Nonparametric Sieve Regression: Least Squares, Averaging Least Squares, and Cross-Validation
Hansen, Bruce E., (2014)
Estimating average marginal effects in nonseparable structural systems
Schennach, Susanne M., (2007)
Testing a conditional form of exogeneity
White, Halbert, (2010)