If you will read carefully, in the second sentence you quoted of mine, I made the statement "Right now we are in a situation similar to that of the twenties before the Great Depression." Please notice that A) I used the qualifier "similar" and B) That there are markets, investment markets that are indeed still booming, namely the housing market. Granted, this bubble is deflating a bit, and going to burst soon, but again, this is SIMILAR to what occured to the investment markets right before the Great Depression.
Now then, your request for citing a "tenured economics professor at an accredited university" is patentently ludicrous, for most such professors, if they do publish their work, do so in pretty obscure professional journals that are not published online, thus my ability to quote from them right now is extrememly limited. I could cite my wife, who fill your ardorous requirements, but I'm not in the habit of giving out such personal information.
So instead, I will cite well know, award winning economists and economic writers. And quite frankly if you don't find them acceptable, then I think that you simply want to keep your head comfortably in the sand. For these are people who have not only taught, but who indeed help shape the US economy. Who better to be in the know about what shape our economy is in?
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http://www.infowars.com/articles/economy/greenspan_warns_fuel_housing.htm>
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http://www.truthout.org/docs_04/112804K.shtml>
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http://www.ameinfo.com/45122.html>
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http://neweconomist.blogs.com/new_economist/2005/09/brad_delong_ste.html>
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http://www.thenation.com/doc/20051024/real_estate_bubble>
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http://www.smirkingchimp.com/article.php?sid=22856>
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http://alternet.org/story/26406/>
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http://www.truthout.org/docs_2005/101705M.shtml>
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http://www.boston.com/news/globe/editorial_opinion/oped/articles/2005/08/21/disturbing_news_on_the_economy/>
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http://counterpunch.org/roberts08092005.html>
Now then, I have a question for you. What can you point to that actually signals, ie a leading indicator, that the US economy is going to continue to rise? That economically the US is doing well and will continue to do well? I won't even ask for you to cite a "tenured economics professor at an accredited university". Just give something from a recognized economics expert would be fine.