Comments for The Impact of a Financial Speculation Tax on GDP: Problems with the European Commission Model at http://www.cepr.net , comment 1 to 1 out of 1 comments http://www.cepr.net Thu, 20 Jun 2013 03:44:12 +0100 FeedCreator 1.7.3 http://www.cepr.net/index.php/blogs/cepr-blog/the-impact-of-a-financial-speculation-tax-on-gdp-problems-with-the-european-commission-model#comment-13523 Very informative. One question: Is there not already rules in place that limit the numbers of super-informed investors in any given market? For equities, I believe these investors are called "specialists," and typically only one specialist is assigned to one stock for each exchange. Specialists are usually located physically on the floor of the exchange. Now, of course there are also high frequency market makers that remote directly into the exchanges and trade. Arguably, these market makers could be deemed as "super-informed." But, if I'm not mistaken, some markets even limit the number of market makers allowed to cover a given securities. I thought this was especially true for commodities markets. - JSeydl Fri, 16 Dec 2011 07:09:03 +0100