Hal Varian - says “technology changes — economic laws do not.”
Yours truly has said more than once - "it doesn't matter whether you are making computer chips or potato chips - finance is finance"
Its nice to see that I am not alone in this...
Hal Varian is a pretty famous academic economist who consults for Google now. He is also well know to most Business PhD students as his microecon text book is standard reading.
Link from the Freakonomics Blog on the NY Times