Time-series analysis of weekly initial claims over 1967–2012 reveal the following: (1) Initial claims are highly seasonal and cyclical, but do not follow a specific trend. Seasonality follows a “W” pattern over the 52 week period. (2) Initial claims are subject to conditional volatility...

This study examines the sustainability along with the structural stability of the U.S. federal budget deficit over the post World War II period. Allowing for an endogenously determined structural break in 1982:1, tests of unit roots based on Perron's [<CitationRef CitationID="CR20">1997</CitationRef>] methodology suggest a stationary and...</citationref>