Libs are straying far afield of any expertise when they start talking about economic matters. The vast vast majority of them don't understand simple supply and demand concepts.
Case in point, the libs, representing the Malthusians, and the conservatives, representing the cornucopians. Paul R. Ehrlich, the lib, and Julian L. Simon the conservative made a bet about the scarcity/abundance of natural resources. They bet on a basket of 5 metals. the outcome, after 10 years beginning in 1980...
Each of the five metals chosen by Ehrlich's group, when adjusted for inflation since 1980, had declined in price. The drop was so sharp, in fact, that Simon would have come out slightly ahead overall even without the inflation adjustment called for in the bet. Prices fell for the same Cornucopian reasons they had fallen in previous decades -- entrepreneurship and continuing technological improvements. Prospectors found new lodes, such as the nickel mines around the world that ended a Canadian company's near monopoly of the market. Thanks to computers, new machines and new chemical processes, there were more efficient ways to extract and refine the ores for chrome and the other metals.
Just about everything a lib considers to be knowledge is propaganda.
Link to NYT article...
http://www.nytimes.com/1990/12/02/magazine/betting-on-the-planet.html?pagewanted=all&src=pm