//-->
Pitfalls and Opportunities: What Macroeconomists Should Know about Unit Roots
Campbell, John, (1991)
Structural models of the liquidity effect
Pagan, Adrian R., (1995)
The Spanish empire in America : containing, a succinct relation of the discovery and settlement of its several colonies, a view of their respective situations, extent, commodities, trade, &c.
Campbell, John, (1747)