Unlikely to be cost-plus pricing. It's about what the market will bear
Come on, really? Yes the price is dependent on what people are willing to pay, but there is a very real and legitimate reason for the drink to cost more.
Umm, yes? A lot of coffeeshops will charge say 1.50 for an Americano, but 50 cents for an additional shot of espresso in a normal coffee. The only explanation is: That's what the market will bear.
Yes. There's a great explanation from The Undercover Economist. It's a great read. Highly recommended: http://www.amazon.com/Undercover-Economist-Exposing-Poor-Dec...
Update: Here's a link to the explanation: http://books.google.com/books?id=YAA8hPloNRcC&pg=PA30...