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 
