I Think I'm Getting Soft In My Old Age

I've decided to offer my students some extra credit. Here it is:

This extra credit is worth three points, added to your final grade (for perspective, this is the equivalent of 60 points added to a homework assignment). You must answer it in 75 words or less. If you use anything more than that, even by one word, than it will be worth zero points. Your answer must be typed with few spelling or grammatical errors (if it needs to be stapled, you did something wrong).

“It is through exchange that difference becomes a blessing, not a curse.”
—Jonathon Sacks, The Dignity of Difference, 2002

This quote opens our syllabus and captures a subtle theme of the course. What’s the theme? (There are probably multiple answers to this question.) In answering this question, you better off using information from at least one of the following podcasts, preferably two. Indicate via footnote which podcast(s) you use; these references do not count to your word limit. You might want to listen to more than you intend to use; some of these podcasts are better for answering this question than others.

Leamer on Outsourcing and Globalization
Brook on Vermeer's Hat and the Dawn of Global Trade
Bernstein on the History of Trade
Munger on Middlemen
Boudreaux on the Economics of "Buy Local"

This assignment is due on May 4, 2009.