Finally, the default message is the same message you displayed in Listing 5. This message will most likely never be used, but it's good to have as a fall-back.
Heilbroner's theory has become doctrine in some economics textbooks: for example, Monte Palmer disparages nontechnological rural development projects as inhibiting constructive change.
At the ubiquitous convenience stores throughout Japan, cashiers now ask if customers need chopsticks rather than sticking them into checkout bags by default.