NelPlo                   Nelson--Plosser Macroeconomic Time Series
USeconomic               U.S. Economic Variables
bev                      Beveridge Wheat Price Index, 1500--1869.
camp                     Mount Campito Yearly Treering Data, -3435--1969.
ice.river                Icelandic River Data
nino                     Sea Surface Temperature (SST) Nino 3 and Nino
                         3.4 Indices
tcm                      Monthly Yields on Treasury Securities
tcmd                     Daily Yields on Treasury Securities
