usaww {splm}

Spatial weights matrix - US states

Description

Spatial weights matrix of the 48 continental US States based on the queen contiguity criterium.

Usage

data(usaww)

Format

A matrix with elements different from zero if state i and j are neighbors. Weights are row standardized. According to the queen contiguity criterium, Arizona and Colorado are considered neighbours.

Author(s)

Giovanni Millo