I was just reading the answer to your question yesterday, from someone who actually has done it: http://www.puppetmastertrading.com/blog/2010/03/02/basic-econom

I was just reading the answer to your question yesterday, from someone who actually has done it: http://www.puppetmastertrading.com/blog/2010/03/02/basic-economics-of-an-algorithmic-trading-startup/ http://www.puppetmastertrading.com/blog/2010/03/02/basic-eco...