This paper studies the special case of the triangular system of equations in Vytlacil and Yildiz (2007), where both dependent variables are binary but without imposing the restrictive support ...

In this paper is presented a simultaneous equation model that is non-triangular, its disturbances having a non-diagonal covariance matrix, and yet is causal and recursive, and whose underlying ...

The ordering of magnetic moments in a strongly correlated system depends on the lattice they inhabit, with triangular lattices yielding exotic phases through an effect called geometrical frustration.

Structures that respond to rising temperature by moving in a carefully controlled manner are being developed by scientists in Malta. The material contains a frameworks of struts, which each respond ...