Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
LVIDEF|Vars maps for selected variables: a) B_fer (soil fertility), b) I_ngt (stable nighlights), c) E_sec (secondary education); and d) H_med (medium families). High values refer to increased predictive power. Rates were filtered to values greater than 1% to enhance visualization.
