2 papers
econ.EM2019
Semiparametric Estimation of Correlated Random Coefficient Models without Instrumental Variables
Samuele Centorrino, Aman Ullah, Jing Xue
We study a linear random coefficient model where slope parameters may be correlated with some continuous covariates. Such a model specification may occur in empirical research, for…
math.GR2014
On Modulo AG-groupoids
Amanullah, Muhammad Rashad, Imtiaz Ahmad +1
A groupoid G is called an AG-groupoid if it satisfies the left invertive law: (ab)c = (cb)a. An AG-group G, is an AG-groupoid with left identity e \in G (that is, ea = a for all a…