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Julian Lincoln Simon (February 12, 1932 – February 8, 1998) was a professor of business administration at the University of Maryland and a Senior Fellow at the Cato Institute at the time of his death, after previously serving as a longtime economics and business professor at the University of Illinois at Urbana-Champaign. Simon wrote many books and articles, mostly on economic subjects. He is best known for his work on population, natural resources, and immigration. His work covers cornucopian views on lasting economic benefits from natural resources and continuous population growth, even despite limited or finite physical resources, empowered by human ingenuity, substitutes, and technological progress. His works are also cited by libertarians against government regulation. He died at the age of 65 of a heart attack in Chevy Chase, Maryland. He is also known for the famous Simon–Ehrlich wager, a bet he made with ecologist Paul R. Ehrlich. Ehrlich bet that the prices for five metals would increase over a decade, while Simon took the opposite stance. Simon won the bet, as the prices for the metals sharply declined during that decade. ==Theory== Simon's 1981 book ''The Ultimate Resource'' is a criticism of what was then the conventional wisdom on population growth, raw-material scarcity and resource consumption. Simon argues that our notions of increasing resource-scarcity ignore the long-term declines in wage-adjusted raw material prices. Viewed economically, he argues, increasing wealth and technology make more resources available; although supplies may be limited physically they may be viewed as economically indefinite as old resources are recycled and new alternatives are assumed to be developed by the market. Simon challenged the notion of an impending Malthusian catastrophe—that an increase in population has negative economic consequences; that population is a drain on natural resources; and that we stand at risk of running out of resources through over-consumption. Simon argues that population is the solution to resource scarcities and environmental problems, since people and markets innovate. His ideas were praised by Nobel Laureate economists Friedrich Hayek and Milton Friedman, the latter in a 1998 foreword to ''The Ultimate Resource II'', but they have also attracted critics such as Paul R. Ehrlich and Albert Allen Bartlett. Simon examined different raw materials, especially metals and their prices in historical times. He assumed that besides temporary shortfalls, in the long run prices for raw materials remain at similar levels or even decrease. E.g. aluminium was never as expensive as before 1886 and steel used for medieval armor carried a much higher price tag in current dollars than any modern parallel. A recent discussion of commodity index long-term trends supported his positions. His 1984 book ''The Resourceful Earth'' (co-edited by Herman Kahn), is a similar criticism of the conventional wisdom on population growth and resource consumption and a direct response to the Global 2000 report. For example, it predicted that "There is no compelling reason to believe that world oil prices will rise in the coming decades. In fact, prices may well fall below current levels". Indeed, oil prices trended downward for nearly the next 2 decades, before rising above 1984 levels in about 2003 or 2004. Oil prices have subsequently risen and fallen, and risen again. In 2008, the price of crude oil reached $100 per barrel, a level last attained in the 1860s (inflation adjusted). Later in 2008, the price again sharply fell, to a low of about $40, before rising again to a high around $125. Since mid-2011, prices are again slowly trending downward.〔(【引用サイトリンク】title=Brent Crude Oil Spot Price )〕 Simon was skeptical, in 1994, of claims that human activity caused global environmental damage, notably in relation to CFCs, ozone depletion and climate change, the latter primarily because of the perceived rapid switch from fears of global cooling and a new ice age (in the mid-1970s) to the later fears of global warming. Simon also listed numerous claims about alleged environmental damage and health dangers from pollution as "definitely disproved". These included claims about lead pollution & IQ, DDT, PCBs, malathion, Agent Orange, asbestos, and the chemical contamination at Love Canal.〔The Ultimate Resource 2, pp. 260–265〕 He dismissed such concerns as a mere "value judgement." :"But also, to a startling degree, the decision about whether the overall effect of a child or migrant is positive or negative depends on the values of whoever is making the judgment - your preference to spend a dollar now rather than to wait for a dollar-plus-something in twenty or thirty years, your preferences for having more or fewer wild animals alive as opposed to more or fewer human beings alive, and so on." 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Julian Simon」の詳細全文を読む スポンサード リンク
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