i assume j. bradford delong is none other than brad delong?
if so, he's ganged up with (a.) michael froomkin, whose *ex- cellent* commentaries i've been reading on misc crypto and policy lists for ~5 years now, on an article called 'specula- tive microeconomics for tomorrow's economy,' and it looks Really Interesting.
if any LBOers are interested in the theory, practice, and implications of digital cash etc., froomkin's your man.
cheers, t