Interpreted languages, in general, are not faster than compiled languages. Period.
Lisp is not an interpreted language. Period. It is an interactive language. If an implementation decides to achieve this with an interpretor, that is possible. However, there are implementation for which all code is compiled. SBCL is such an implementation. I would include a snippet of the disassembly from SBCL but
Also, another nice fact. Wikipedia is not your research center. It is a place to start. If you are using it as a source for your research paper, you should get an F.
Yes, start with something more credible, like Fox News.
Where have you been looking? Do you know anyone works in retail? Or are all of your friends hot-shit coders with plenty of job security? I have friends who work in retail. Bloomberg.com has an article: "Wal-Mart Stores Inc., Macyâ(TM)s Inc. and Gap Inc. slashed earnings forecasts after the worst holiday- shopping season in 40 years squeezed retail profit margins." A friend of mine was a manager at the Gap and was recently let go. Shit does roll downhill, after all.
The only possible interpretation of any research whatever in the `social sciences' is: some do, some don't. -- Ernest Rutherford